{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "397066",
    "entityType": "User",
    "nonce": "0xa052be66a1abdaf750e286f0113d599f477bb4715c096a40f45d04c3c386a66f",
    "signature": "0xacb48e20e3e1178602ac6eb876c3671ec79f62560516a2f45d9a71189bb300db1f5b8907c9ff8ec04e04dc458f2f5b43bd714c7f469362e20466e4faed43ee8c1c",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}