{
  "manageEntity": {
    "action": "Update",
    "entityId": "674724902",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieragjlderu3fdhljfwzoui4zp32ki6hgi7xh5e5olebvsdoo5wfigjq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":431069960}]}}}",
    "nonce": "0xf7caecbd04c77ef92f37fd4a0251fd5f164966ba360a5a5262f6962233ba7552",
    "signature": "0x73d1046af6df47ec1f617ca6382d5f2790dc44ae5cd0287bcfd698af017a83c736c4c70e8bc2b2dfa815a72621dcffb241b2788a7bfb06cdd3daefb2b1b520d21c",
    "signer": "0xec1Fe7f623469C68eBB52525A42b86C0a36db1CA",
    "userId": "674724902"
  }
}