{
  "manageEntity": {
    "action": "Update",
    "entityId": "783297978",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb5f290878fcd231f53909358b977f62037131766dff778cb68633088e5158b2b",
    "signature": "0x03d42c3108b1e792e893ba20171517d5647be500f9af4f6eb61cee70202e19402db8dc94179d8ab8af64440ce41b7ad35264d52594f7335de40d1d3d376ba4b71b",
    "signer": "0xa33B035d6435BE4bFf115E5FB72d2328DfC6ADE2",
    "userId": "783297978"
  }
}