{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "339826419",
    "entityType": "User",
    "nonce": "0x62289adf4dcfc4f309a79f98eb26dfccae1bc52f72a92913b8fb2390362116a7",
    "signature": "0xd124941acee0876746ff4a5214ddf68b9cd163cf003cad1868d7d37bba54b7ca557a7b706f14e3e9905aa7302b53f6902505ee8488493f945e96bcc75b0a67c61b",
    "signer": "0x2F87bb373089af6C75e3362077A0E52A4779f72c",
    "userId": "582715056"
  }
}