{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123495",
    "entityType": "User",
    "nonce": "0xe2bd28d4846bcd5afc095edc7a648b63ee54c85dfdfbead81fcc6f740de07f32",
    "signature": "0xa55b4ecf7cf92874c9fae45a4afca7df446955224c690797338bae7d047417cd02cb4f826af8451b8c198b21a7ee19261f0d7da3d7dd54b8a27ac062664e6c6c1b",
    "signer": "0x07691D0C34E03020A13BE4B5a411B64CcFff5556",
    "userId": "9014"
  }
}