{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3848",
    "entityType": "User",
    "nonce": "0xae15fbbbf733d175e182812d7652439df36f64148a8bd0c50397cc9479a263fe",
    "signature": "0x6fe1842e6451f51434810b71a899dbd499f9f206b2d985447387c13104f391456ab117c9da1949b6d18662387a88fd84713f596d5b72465fd70fa56275e45fd41b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}