{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4d6a519fd7dd08baba73fc3c66895d94bb042f1683ef594c46db464217083df8",
    "signature": "0x6e5c2a71cb8985c56312e2888612c51742381f6d52ba290452b4f0f9dd15ea1e3cb3c2c075f409796e4103237a9805ec2eb4942e3620c7d8ad98b702b4c470e01c",
    "signer": "0x7E83B25b16B783fcd72F59CE3004CB54a30e53dE",
    "userId": "611206472"
  }
}