{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1fdea9a7e2927d9fde953c26c67dc55224ff2729c5ec9eff3cbc87759fddd43a",
    "signature": "0x01566b248894ce7c583133cbfd7ffe50fe724fd29ecf817b20cd540d27d581e37d14f38895dbd865585b275aa461ac2ac2c1cb4a845326e711d561e5fd9b85fe1c",
    "signer": "0x29dfDf0Da4b6D5E08A122DF072a0B45123A751B0",
    "userId": "695306745"
  }
}