{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x15632f8979e66d67127286f5b400ea11b8dff81fad44f44cb8ddca0ee4412530",
    "signature": "0xbf41d34bb244c2a10ead453b6264b7ae0e37dec823cde76d87354912c45ce8a257bda9081f09e917913e9ae432dedd930cb7ec2b42739f5d05ba579847ce762a1b",
    "signer": "0x8CD1Da8cC9e6579C92F9995eBBAFF64Be49d7a99",
    "userId": "817536815"
  }
}