{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcdb8afeaca51ff9921137d36dfafa6de0eaca0becebcd119270eab17516cd01a",
    "signature": "0x167cb8680bed8063acee9cf9cbbb82ab210bbd323f0d1ed9c875a5ee5bd47f7b11199530a0005eaaf12cccd497a0ed3ca9041c2df11ecbec915eae7a25a9f9b01c",
    "signer": "0xdD03ED106abBEF4982159500e32B8602B985a69B",
    "userId": "444965341"
  }
}