anchor.diff:  > Authorization: MAC id="...", ts="...", nonce="...", mac="..."
   > Content-Type: application/json
   {
  -    "mv": "/lps/12345/member-validations/78348927"
       "currency": "CAD"
       "amount": 220.34
       "billingInfo": {
  
positive.code: > Authorization: MAC id="...", ts="...", nonce="...", mac="..."
  > Content-Type: application/json
  {
  }
  < 202
  < Content-Type: application/json
  
negative.code: > Authorization: MAC id="...", ts="...", nonce="...", mac="..."
  > Content-Type: application/json
  {
      "currency": "sky"
      "amount": 24300
  }
  