{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x6520b3975133abfbb0a08b1a1d201da49f7d6cd252ec1aedf4ff04c2e06efee6",
    "signature": "0x04775d95aaf6eb953889e04c2e0ad62038de2b3611b003ca4ddc5e58d782141719dde95d306debd1d01ebd11d50ae491cdf47c7d75ac2031e871291559313f371c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}