{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "676581728",
    "entityType": "User",
    "nonce": "0xe0b0c5cd29f53e9701f7655bcd4671158939ef499002f13c7d0559aa6b4432ed",
    "signature": "0x8b671bd0c8a6fd9849d087ffe305a241f75aa2b99907ad739277206c303aaccb19c5e188fd4fd5d1e25f3df590346441b88cbb9cb36531bc2ed79d744151b1e21b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}