{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x57880b9ab99e6054441a558056a87e8431aa177dfd8a07db2d7c674abd7f3005",
    "signature": "0xfa63a3e730f74b924a8c8ef54b191d5ac0919dc0d37fd17376305491588fff9c5c9cf1346174fcba7f450b5c975d711c2b3248d9b0f4214b6463c5c8f7153e151c",
    "signer": "0x129FC581Bc6622313fB48ee15Aea977fcB3dcF2E",
    "userId": "942505233"
  }
}