{
  "manageEntity": {
    "action": "Update",
    "entityId": "340365932",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_image_sizes_multihash\":\"baeaaaiqsebkmhvvxu4f5bp7dhn75cnr2nf2lfj3d5alhjul47kmp23tk7gz4e\"}}",
    "nonce": "1791027638606090866",
    "signature": "0x2b6cf2b1a0d1cab0e9ae9f2bdac869f06d8cddd46c53a73153813d0366d7b65009616b05566bfee77bd39167be25f1703cffdc680358243bd9be09367f4520731b",
    "signer": "0xeaB6b479B33FEc6303065aeab4C0b6D344f091C6",
    "userId": "1421026"
  }
}