{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "977626924",
    "entityType": "User",
    "nonce": "0xb1d8dc31f367943dc3fd2f663db595800b190929ea575c66d00bee5196b6f405",
    "signature": "0x0e1e1066bff55f59420434683174d86f4649528e000bab015b4a1e718eff4e9413c671905bfaf05eddf2bbaf88ea142a5b31b69814d9eadd5d41cbf5ec6e20441c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}