{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x43d364fef68ff1130f672a13af3ec966711e9868ff4b36930e05da4b7f8df844",
    "signature": "0x21eb162105b31fde934445312109184a0e0ec510c7d5e77e70890c4cd82d6aa21e7612348a85dbfe43e83ec0ae286cac7b025c36ee389b4c0448c5cb2871e0f01b",
    "signer": "0x00ad722e3508336F04f390c0Be53dC5f7bE9c9a4",
    "userId": "160386533"
  }
}