{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaad552521faae57c9ee0ec49f30b32de53d5445c672cfad8633e4d97d07c4fa3",
    "signature": "0xfa9f993c347c5a9b93b6dd1a92427448f7b8074ad8baf6457c0e75a48e9be164023c1206d4113ff462fa82f6ff4c37c4c538621186644512abc71c58fe99e3721b",
    "signer": "0x66008518C65C48901f513b6ECea53397aDFd1500",
    "userId": "359981248"
  }
}