{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe367c2a3cac240b5b35c7acc06d6cfb947e4e68596e64131652bb5a5a48e725b",
    "signature": "0x82bdd8bb831831d14ba040ffb47add286ac66cf29188c23c393f323cb904ade677ac11c2c0d91bcc678741493728d243142c28cb17c3acc64da8b7070c5be77a1c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}