{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56576",
    "entityType": "User",
    "nonce": "0x4ba57bc1bb4b05052f17f454a4bca7ad024847b6fc44dff80b553c6254601b59",
    "signature": "0x6410cc4192e84fe3bb11400e12266491c200113c8ff85868d51635c5c5d76149782e005ab8edcce4becdedbfd41f033c6eb3c337d263dadca76d6b41e08bbbbb1c",
    "signer": "0x0157D745aebb0AD9f297C69193065ce6fBB09853",
    "userId": "208486764"
  }
}