{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "140446",
    "entityType": "User",
    "nonce": "0x507589ac0bb8b4f4c9e22bd6a3d15829a475e24fe53e20e37e3670180f7a9c06",
    "signature": "0xcff75de71319768af8325acf1d41629adb9806c67ac5902acabe80e4e805d84235aacc5b594dc9b87a8771523a4bc547119eee2349bce273938148f01e41f3091b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}