{
  "manageEntity": {
    "action": "Update",
    "entityId": "807522243",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe2323f6264e7f0c4d108a4eaaa92394e0847ad3883fbb2b57e9040e71f9efd71",
    "signature": "0x035880ef2700297fc288ca4af5cba571b9612754c963e403de59a262c4b7993c46b3ae88049df6213eaed4cf21f37d869a7738618fd67082681018b42556c8611c",
    "signer": "0xFfAc133950848F6349D296ab37c8750317D117a8",
    "userId": "807522243"
  }
}