{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77567",
    "entityType": "User",
    "nonce": "0xfab18cf4c9af5d9442734200f5d0d3150b9ffc5601d9d74ee9c0725c8c32ae16",
    "signature": "0xc029b50d0b14c7064cd36232fdfcca81a91a2540f823cbcb0199ea7436f053b045365d0f6aa0de9f02e5748509f0255a168118619d4c84befe6f71ba1cb7ac981c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}