{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343",
    "entityType": "User",
    "nonce": "0x02c4b00a5d39eaddcf860ff89db276b4eed9e3cfbb592036c03677750a19bb28",
    "signature": "0xdaf05be800d444c2bfba9a4fadd07b9adb1e2984f9dd0b0527f9fd57d650a19f63aea3842fba4ca76e06e65a7ba5388e8eaad16986313a53e5cab6be2869b8401b",
    "signer": "0x22755B2d72c0de00840F2A791184AFDAeF46deA9",
    "userId": "642307805"
  }
}