{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13589021",
    "entityType": "User",
    "nonce": "0xb4530359864b7e56bfa0ac8bc15a2e107c535825cf7e420303c509a8c4f2d066",
    "signature": "0x0b756748feae606b114e1f9a5e9be0bee705b1ff06c34920833851b9cdf0c4e333bd2cdce3e6d8b49e149a6b70ced9e43377443ed2f073ab87a70f0bd0c524911c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}