{
  "manageEntity": {
    "action": "Update",
    "entityId": "779349060",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4c071aa0a85fe9397ea6fd4f3f5653ac183b88ce4bde45e7bc9d42f41d3aef08",
    "signature": "0xad5b4cc49a222e759782e2a608295fe882880576f4a53f9e012e8f5c3ca544ed1dd0602415b67e2213ae67d6039275e9c2a5788253d0dd42219a7859ea61f4181c",
    "signer": "0x6f40D540273018675C8d2260b467b08bAD4a9181",
    "userId": "779349060"
  }
}