{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "394450",
    "entityType": "User",
    "nonce": "0x60b8a29a37ae92f664e53158498e9fdf18cdfa0c6050abd00ecb08f0e5275a81",
    "signature": "0xd20d48c264ba4333afcb8d5c0b08cff9036cb9154e7f1020604cfc3576c620b66a036172de39c681f66aedd054de2cb9cbbcd054f5b73d3a630e5436c0b40f1a1b",
    "signer": "0xA56552Ddf7D4d833c1B3e4f8D727B787d4D1DFFe",
    "userId": "629530515"
  }
}