{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "289000",
    "entityType": "User",
    "nonce": "0x48266bc7920cd259f102f7c278fcc0ca472247e319878f32e47b825c0cf5fc0d",
    "signature": "0x7fc6ccf61caf65a05c8fdce646f6c2b0b3281b378f970a472bd016009da79b9c0988ed84223406966f6dafb1e5e37963a0e9150aaa95f0fe88f7c0b40df29bd61b",
    "signer": "0xB8bF557DC997cD9e10AF5CcDddf0D851f201Cd90",
    "userId": "806523887"
  }
}