{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "224516564",
    "entityType": "User",
    "nonce": "0x9ca20ee0e00f470788812df613d52ae4821a8c05d80f8275156e39bc3f7caa18",
    "signature": "0xa56f70bcf3644aa74216d3e71baa8f49e3ee74251a5e4b8a5fcbca051086d5f6218c0860d2e3e7d6492ede432987ec3de6ee04b284d3dcf5b23cd6c995bb10991c",
    "signer": "0xD8518cC9A95ee58dA8ac66F2A6719aE12CEa0aCe",
    "userId": "595924827"
  }
}