{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175771",
    "entityType": "User",
    "nonce": "0xd3307d5ae5e65c0d890f9b859852c6e69151fad6704a43f6f21c2a68b1ec384a",
    "signature": "0x8f0a3019772c5da745e93b5a4d1d8a1a039afffc6c32670110e9cc80dd5c9429056cf30541e14061b6ae0c3c0b3940d93b7ad91099116abe5eb7ab1d28aeca2b1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}