anchor.diff:      "lastName": "Shapiro",
       "email": "daniel.shapiro@points.com",
       "password": "password",
  -    "memberId": "12394123812390"
  +    "memberId": "12394123812390",
  +    "mvContract": "https://sandbox.lcp.points.com/lps/{lpid}/mv-md/9876"
   }
   < 201
   < Content-Type: application/json;charset=utf-8
  
positive.code:     }
  }
  
  List the authentication fields for a specific Loyalty Program.
  <br> If a LP is not found, return a 404.
  GET /lps/{lpID}/mv-md
  > Authorization: MAC id="...", ts="...", nonce="...", mac="..."
  
negative.code: ]
  }
  
  Add an MV Metadata Contract
  POST /lps/{lpID}/mv-md
  > Authorization: MAC id="...", ts="...", nonce="...", mac="..."
  {
      "identifyingFields": 
      [
          {
              "fieldKey": "member_first_name",
              "validation": "^[A-Za-z]{3,15}$",
              "name": {
                  "us-en": "First Name"
              }
              "description": {
                  "us-en": "Member's First Name"
              }
          },
          {
              "fieldKey": "member_last_name",
              "validation": "^[A-Za-z]{3,15}$",
              "name": {
                  "us-en": "Last Name"
              }
              "description": {
                  "us-en": "Member's Last Name"
              }
          }
      ],
      "authenticatingFields": 
      [
          {
              "fieldKey": "member_password",
              "validation": "^[A-Za-z]{3,15}$",
              "name": {
                  "us-en": "Password"
              }
              "description": {
                  "us-en": "Password"
              }
          },
      ]
  }
  < 201
  {
      "identifyingFields": 
      [
          {
              "fieldKey": "member_first_name",
              "validation": "^[A-Za-z]{3,15}$",
              "name": {
                  "us-en": "First Name"
              }
              "description": {
                  "us-en": "Member's First Name"
              }
          },
          {
              "fieldKey": "member_last_name",
              "validation": "^[A-Za-z]{3,15}$",
              "name": {
                  "us-en": "Last Name"
              }
              "description": {
                  "us-en": "Member's Last Name"
              }
          }
      ],
      "authenticatingFields": 
      [
          {
              "fieldKey": "member_password",
              "validation": "^[A-Za-z]{3,15}$",
              "name": {
                  "us-en": "Password"
              }
              "description": {
                  "us-en": "Password"
              }
          },
      ],
      "links": {
          "self": {
              "href": "https://na.platform.points.com/lps/{lpID}/mv-md/9876"
  