{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8583",
    "entityType": "User",
    "nonce": "0x6a69dffce39b3726bfd6391d51abc9065cd2bad803185e98c262e54f045e30c4",
    "signature": "0x4de6f3d03fccb8fe20c4ca8cc828caefc39b378a4eff5ed4ae1e3e4fdd41f68541bd493280a4d8b38c571b9949ed5472dc00cdcd9aaa1ebe44d467e4743e46a41b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}