{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353545",
    "entityType": "User",
    "nonce": "0x3a3de30ccf3f73442fa17db067e695cb2e9c696024c68edf85b7b225f0cf9249",
    "signature": "0xfa7ddfb7edf26bf14e608e8e85c4668ce3a8a16e51faa4ab7a85a6be3a9d80b602beaf866e06b4980f6885c728dd246608746548a31005a66cb5d129022e39e81b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}