{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x2882501f124c61640254da88fd47492ed757b3d8e0c50c1dbe250e4963b4a499",
    "signature": "0x1a8cb7e3bb4ae87c53c4711b3952896b78c387514da200a68c75f6994d1e63c31313f1d43965a704c1fd7df84c8e0d7d025df98f0c1948e6ad2f554f773847851b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}