{
  "manageEntity": {
    "action": "Update",
    "entityId": "391568375",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xde5ef1db0d827bbfbcd9449277d65519051b4e1f3ab9129194b7cf5c498737e1",
    "signature": "0x8c80fa5b335dfdc4641654cab0ba6528b11082d8e663026f785d3fac91b6a4a54c5ee92c11153c4fe8aaf4e48d9a70a877d11c71d24e9c6b4f8cd4874022783b1c",
    "signer": "0xdc11541f049E5D0C27bcBb2B07117CBf13b6034d",
    "userId": "391568375"
  }
}