{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "227970",
    "entityType": "User",
    "nonce": "0x25f2ee4166040696ebfe4837b3be102042f55139caa3ffa18077bd6fac215c38",
    "signature": "0x569d90baede2af152a3a732a7f437de3d6e13141054388eda5e3c42715ea801e18c015d87b217ce4c38b85382343059aca31676aecddc479ce02e23f29fd78c41c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}