{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335904",
    "entityType": "User",
    "nonce": "0x0d4b2098a90bad66e0ef605ee02c4e326d7b5809dd7986fb6f5f4ae79647faa2",
    "signature": "0x764c29fe2b2ad8abde2ec8dc69d8da65979826694a391e5d6bd7a27aca55baeb3144649107334c168f8f1102c65a0ce454c777780450be7396e0855f74bf83d51b",
    "signer": "0xcB0cc6764C9023b8685E78148224a9467967E228",
    "userId": "104731"
  }
}