{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "506671051",
    "entityType": "User",
    "nonce": "0x47b4bb4ad84010050ccf0befeb776e89f11d760266fb51b0173067858fa4f829",
    "signature": "0xf5ba37dd7d132a041179deef91b455ef3882ad704adbc2113e3e8acc4005d0961d3dbc6c821357bca5ab12238ce0e2619ff29c73c01de1823b062e2be71b97e81b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}