{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1831424",
    "entityType": "User",
    "nonce": "0xb9fab2a59441923412f64b2544734334dcd81381af924bc3a468d812bc5cebe9",
    "signature": "0x40b36eb4f16596063a054865aac1913042d99120b415f85e98d0a78628bf2e5744abaf2a2095c46e43c9ded8d52e7b3668e206806535b80bfb86d14f295d5e691b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}