{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "338604526",
    "entityType": "User",
    "nonce": "0x315597540384f0b91fd2c153ddb1bb6d386613814ad2c1638c2aff44c3be511a",
    "signature": "0xf08b1694f54de029fbd6788bab44d9ecba22105d2061a3e98ed6decc3c0e7b227de97056e4c1c442e8f8c9646dacfe842a57653f8e5593772b5f3dd7a33984e51c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}