{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x764ebf578ca25be4384a5df2794566f3316412800e05ba4dce1eff15a97422d0",
    "signature": "0x4c646acf83a94969a6b3c0e59e1ea00742c33bf2ecea89050f8143ae245735b708fd4efe8ea2ef8d2abc09850baa82594fa05818dabb1ad598f245da4c3680261c",
    "signer": "0xE22639FD840080b20889373FEa6060B4757eB9c1",
    "userId": "274627911"
  }
}