{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "180639988",
    "entityType": "User",
    "nonce": "0xe797b4ac8bba762b063825467e73c54e10351ff2199fce34978e2f9a5402186a",
    "signature": "0xbe21206aa7687b0670465144aa7cdcacdfacb3f7ecf8be7ead3993b4891fb0cd7cf52e7c41e45a11cc89f48b290bc55213867faef1e3c666f900406dcfb64e011b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}