{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354535",
    "entityType": "User",
    "nonce": "0x31f9ec40b79a52f9190853650a18a82b5c1c91c3b78813560071d4ee2b0fc68e",
    "signature": "0xf6e3e99afe9099adc65b8a487689880540eb7e15d329216c29dd9c87fb7d78292b3afc87f1626078e95c66ffb2d2abfd01878680b3b889db3369e1c5dc13e88c1c",
    "signer": "0x1B7594799b4E189Ff1B3C4fD8289B2e8d82B000b",
    "userId": "66769284"
  }
}