{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234183",
    "entityType": "User",
    "nonce": "0xbea7eb9f224d643a0bd92b9249f0ed61f6d4b9819ba186b8edbbbf8a32483624",
    "signature": "0x8ae948bb73cf4a56f11f90f1cd18c3c2916cc86cb9c48a53dd78f0245bc8b72b4f68b0dfc45425b96822e6009a64b0a3bb44d05062a8f5ec809c55142e11a4101c",
    "signer": "0x599AcAE6Bd3db598aFCa7e4fF9Af46c766a941e9",
    "userId": "708112906"
  }
}