{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "889569599",
    "entityType": "User",
    "nonce": "0xad05d02ac2c88b0befd21e306ca37b6d21259107f32d237c6fd6f485852f76df",
    "signature": "0x4c286cb21454912008d9abfde183dd2cb7334164063617b28442fc6ad031c8890cbdf40b417bec1010b2788378b853e16b9de0ef3c3cbbf9a0031b5e086fe77c1b",
    "signer": "0xb1A45536f61CbbfcA63A6C7c0c19D619aFecD0C2",
    "userId": "295952"
  }
}