{
  "manageEntity": {
    "action": "Update",
    "entityId": "370091516",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7sbapxfhugofg3dkz5on2y4qfebynawlpvimmqcy76yholio5vva\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":487744262},{\"type\":\"playlist\",\"playlist_id\":1420596467},{\"type\":\"playlist\",\"playlist_id\":1394640885},{\"type\":\"playlist\",\"playlist_id\":1647242129},{\"type\":\"playlist\",\"playlist_id\":1219668067}]}}}",
    "nonce": "0xf727c0d9a93e5f9d3f1572b6d1bbc89957b6756e31ce4a10c660c05ca92fbc46",
    "signature": "0x521fd2038240c71e48e031bd35aa971070cbbb2dc97337c2f175acfe0c7c32164c64df6dddc7f10620558b3257e2a6e32ec8f30de6282fe711a6f8645f0a3d9f1b",
    "signer": "0x15B9643abE09bd37C52a5BD1dCF938B05b06cBFB",
    "userId": "370091516"
  }
}