{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "264035298",
    "entityType": "User",
    "nonce": "0x7602c345a5bbce9618c005edcbcaea925709f73dfe22ea0dafe83e88871bc27e",
    "signature": "0x30e8aa44cbac05bba04902db275bd54a8ba3fd6a0e4f382390a13ddfb241f95b666487b72397a7ce894ab584e5e8ca3bda40daa70a327507d1e66ac3a55b7b1d1c",
    "signer": "0xcd864e8A0A043bf1B2DA4106C35c1daF234468a5",
    "userId": "784246910"
  }
}