{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51839",
    "entityType": "User",
    "nonce": "0x739da7f14d437c4cbc71f2d3c9dc598acb230bfe5295aaebd9f2c1a452ddea50",
    "signature": "0xb2bb5b047e002c1b4ada918be01b697162045547ae1495e11cc2ab83c1898af3071dd18f29e6f4dcafe893ed04caf41288b99bfdc5e5dba3c6514380c85d9c431b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}