{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1917560",
    "entityType": "User",
    "nonce": "0xfb01cbf9a1798c2846ef9faae1963fbf7786ac850d3614ff90441c1d502389cf",
    "signature": "0xb1c89cd6e0f0567e9b687210354275c63017d229d33212a2789adea468bd983a2e56300f8b93d69a0e50c21a71235ec02b7c00d8503171d68ba9ff01354379371b",
    "signer": "0x9f2f4719827e92e0904Dad3bb49495deDd979a8f",
    "userId": "409695861"
  }
}