message: fixed bugs around paying merchants
diff: // Hassan's depot safe feel free to use your own
  "0xaE9D292753f05b00E996F6b18E4bAe5CC9e5aa48",
  "0xFeDc0c803390bbdA5C4C296776f4b574eC4F30D1",
  - "200",
  + "500",
  "--network", "sokol",
  // Hassan's testing mnemonic feel free to use your own
  "--mnemonic", "pizza monitor radio able holiday boil beyond kingdom throw evil limb dream"
  "pay-merchant",
  // currently creating a merchant is an administrative function--ping
  // hassan to have him create a merchant for you until we get the self-serve fucntionality live
  - "0xED7e330ec63d66EDa6A8Ac772bEd0416214c76C3", // safe for merchant 0x54b11672e90B38ca52140Ac364EebC5cC07F3d91
  + "0x8B3A993F4f8159A5FcFEe3155a33BD1E9Bd6ABe4", // safe for merchant 0x54b11672e90B38ca52140Ac364EebC5cC07F3d91
  // Hassan's prepaid card --feel free to use your own
  - "0xE3ecEF0C4F60562cC7ED6dDf54B8ac6Ca7c95c70",
  + "0x6931aDbbefAfFCB0E1F3a4EbA95A5017386c9752",
  "100",
  "--network", "sokol",
  // Hassan's testing mnemonic feel free to use your own
  