{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7691b57132a7ceee2feb6712962388536220627bcc0bd6718a215681c3e546f2",
    "signature": "0x067a7a9a0688f41991ef6093de9cba5aaaf89cc77db731a574dfa962d6106e3a384812ae5819e148e6a3bc9975173eb26f06dfefe6945d9e402684b498bbdd001b",
    "signer": "0xa3C91a44f620f0b95468bEC359f89edb95AE3cdC",
    "userId": "904405512"
  }
}