{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381638009",
    "entityType": "User",
    "nonce": "0xff24d2181d254b677f026986b1c05972470d9ac73d4ca1f7633028f14c1d9e0e",
    "signature": "0x13f53f4f70681f07fb13dfa1305b902712cb52b4742722bf6381c7e3a70db20c549d956bf4d7285b4b64fd5a472e9068b8aef374778f7afe360ec656b112121e1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}