{
  "manageEntity": {
    "action": "Update",
    "entityId": "586052900",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd43522abdd369ab279cacde5865496c14d55cb462ba77b95ee5f272fc4df4040",
    "signature": "0x9996ffea0171c31cd7ea5efe92212010eb5120932392ea33f59240946b8c1e9a76e05c447e7f95df32ef99849b2e0f0aad33fe7dfe9eac3171cdd1701b45b0e61c",
    "signer": "0x9155590b2077494958534d37141721B5Ae481dd3",
    "userId": "586052900"
  }
}