{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "571117272",
    "entityType": "User",
    "nonce": "0xe40b28b6bfe83835f2a7c87669831837d4a04015355ab13fc9c96011bd8bbd67",
    "signature": "0xb4c080fb83b8a51209ff08c4b772612bee100681ff2ed35875bf22a82ebe5a3c6352db1331e33d88f003e6bd1a96323bf6da8801d8d36b36b72e9bc1b9bb22311c",
    "signer": "0x7F76F94d54ceae58c7d2B2e1C6141b00Ec8457DA",
    "userId": "867185431"
  }
}