{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "568518925",
    "entityType": "User",
    "nonce": "0xa2775534cd3ccc69678f48acfaddc8794ee52799b47f1e7ddf800ef30c161229",
    "signature": "0x3a056a68cf677d9a92912cc5d2a1bee6ccb7dc89ff8505994f85046c683ffb4052f299e80a1f35d2320bb33dc4fcbd56575c3f18ddfb817708404e356c66e7a21c",
    "signer": "0x2a14233e1f50922EA23fb817931968707B6A04c0",
    "userId": "727256442"
  }
}