{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8fe8089eea56823d465a4ae3a3bfdf851e465a61a2876ab5a3134b451a25383d",
    "signature": "0xf7980d75a7154ea9c67cde4db5088566ec0a37ea8d46bc2f7b7ff472c7cca1db521894bde87038e7e3d448524330be9da1d3ee3b003ad1e4afc5e35ee38979d21c",
    "signer": "0xFcE2DBD1Ea8fE6458B6AFfb0a3b227e9b814DCe3",
    "userId": "952173584"
  }
}