{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x06d9552ef6be7cb9055ba990dbe5d6215ce40f376d7d4f46f921934ad4787248",
    "signature": "0x6cbdee9831694d16af98ff4e412cad69e93a73826bd5a99eb1652e90afa72d762e10e4b08fdd7fd4504d202e02c7c101b14811b650e4f7a5947f77caf80993df1c",
    "signer": "0x2e77d43Fc5100a0814976E680cf95E31094071cE",
    "userId": "373153909"
  }
}