{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xb024cfea5f87e78dfaf4677aed4a2816e98e72fbd2327a19545553e93d72fe77",
    "signature": "0x181aa50d0c2d0ae01833262ee8aa338a74f05318497fda08613beb5b3ca4ef5d0fa50e2c9089e3d33d3d18f24c0f817324cc28e523b74a5e91006ba59c85a2c31c",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}