{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "231934",
    "entityType": "User",
    "nonce": "0xff5de388cfbd0237bfb9f6184dd3be829ca2d7aeaf6c02226067895bc17173a1",
    "signature": "0xceb0b24032fc043691cfadee176ae45cb1d26b13f8f94959dd26867fbbe8229e0184ea26b2c1ef3e06fe34fc9858b9f45eac4dc490cd603767e2d9b6aaf56ada1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}