{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "897648338",
    "entityType": "User",
    "nonce": "0xe4c3bd3f0125736a0cf127071ed7b49aa91c9117ab981036ce31af62c6250119",
    "signature": "0xbad5a31b686930d00b5a7472b83872adfe43f8392c1350c660f10dd98d73e64b3c8ce495c898ecdba7a3aef057f871a1bc09d9770355b6364abe2eb1dd70214c1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}