{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50722",
    "entityType": "User",
    "nonce": "0x0d6700162417d5f5abef9406f3619adfa97702fbaf1e76a7a23ff93d75156c09",
    "signature": "0x266164f59c946d38bd392bdd91119bdb03c423680d78ae67d43180e41cf1f34b2b07c0bd7ccde58c57d95f4afc40cf3d513e19f4e3c44377df15176713d912901b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}