{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc2197937ba1c22a1ce79655d250c6acdebb67f3b5621a740f375afed59df90f0",
    "signature": "0xed010763a54f25093bf9c71b61079668b39ac3bb22dadc567107945412e4aa067b8bc0e56eb8da8c68538ef71a73c4e0f168df108271749b75cd8cee1361f1881b",
    "signer": "0x52ccA1a924A62856C3D987aed326D80BA21AE1A1",
    "userId": "566039294"
  }
}