{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfcc1df6358fa0215ace5b163ced54736e382bfcf4c8f78579eea63f98c434bb5",
    "signature": "0x4574b194aa6af51a883f086ebac93f234bb2c09566b576969d0f559376c511de131885545439f4db41c2ce7a372fdd73c7c42fbf8b4efe82af1746f9534bc81f1b",
    "signer": "0xbF77B5D53Bb50fC77c2B56253239CC16Fdcb558c",
    "userId": "736937284"
  }
}