{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8a604286f5206f0b74975afcb488a7c3bf3b284f28cc18a347392dcf39ea3c09",
    "signature": "0x98b274e6313da789d8615022abb34c0b8d5c9b309ab80fd7f1d5aebd2b08965d2e57aef49533c818dcd6a2b57376de7281b3ffdce50eefd3e70c9a29bafb7b691b",
    "signer": "0x4f395E656F6BCAF97d52c129c3ed1CB77d7297Af",
    "userId": "113657068"
  }
}