{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x98a1f2306661119eb00ea8db04457e0bf16751cd14b609598c2db565e3751599",
    "signature": "0xb643a1a0e11e8a4f4bc7c02f88bc20a0fbc346f6fb1fe5ba50be9fb6105e746225d16c0cb7130a6fa2a9d9ff677852713dc7a4c527cf8a636635d19a96c812ec1c",
    "signer": "0x23ebb94B5Fc841626e37a0AEa3B06dAD3A4cfB27",
    "userId": "279409147"
  }
}