{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354535",
    "entityType": "User",
    "nonce": "0x9d7775469acd22e7bd9e61db86c6daaabf5d2b8996fc376bdde3b04b66f30f51",
    "signature": "0xef3c39cc1f54f130c2d5ce13fefe1f45ca73d466b0555c2ef46da0397b365a5659fad248ba177741998620326d74cc086518f4023dc65774df88b58860003f8a1c",
    "signer": "0x417DF7Ac84876c4Ba8A476333a7F1326eFa03593",
    "userId": "178351686"
  }
}