{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2044",
    "entityType": "User",
    "nonce": "0xd5c70f468aebe9a9b5050d8df3822b75d5eaf502f7824b927fc96e76c0498e37",
    "signature": "0x57a18d1729375eed8564bec5a6d3d3755af95062090f5ff0328df4e6bd7946c90ea57d023d65b4040dbad77a955fa13b7bec98e658c1c20ee46cb8ed3a6d11911b",
    "signer": "0x850aA0456b0ef795D5D345834cb661E8c083574F",
    "userId": "733747072"
  }
}