{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "631756877",
    "entityType": "User",
    "nonce": "0xe566945650a7c95f342d4ee2d2d1d91dd53fc41399625bde0fce9fc891cd93fc",
    "signature": "0x581b9672b67f74ff50ee25459a6c286802053d2e9bbb3cb3ade89589d7c6f65f09caae359802c1c8990763d52ae6e0be68c319e48feff1c46aa6ad65b03f478e1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}