{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "243128083",
    "entityType": "User",
    "nonce": "0x783c105fa30d56107e07ec845f3063e56e5472bddc8e730eac41d7742c0ceae2",
    "signature": "0x34a5db76c0a42282744b2ea3942d5e4c26cb2bf585f2a845353383c19752450b4fbeaa49a7d0da15b22f3c6f06567adc3cab6e8d54cd5adb31478f07d680f37c1b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}