{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xea27b707088d8c45cb10b8632d8bc901b1da6fc20a2abf71e92f2670895dde77",
    "signature": "0x74b6e0a3b076488a2172562226e9d4dbfc8e905b039da545a26c0aedd929cd962b103ad5c4af635ad345f04572a37965e864d6b88e2a6ec880f36cd606ef07671c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}