{
  "manageEntity": {
    "action": "Update",
    "entityId": "413483366",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x458edea55353efbe38cd02728ea1740c7c93c496edca064d667c32860876fe10",
    "signature": "0xb863a9da2f1458a13432456e88044ae4717e40f00412c26119eb5b6faa58f0ed14b545aa85f08e0ebf19b60f892de0ef722df0d39317fbdc38ff988951dc1ef31b",
    "signer": "0xB5ed7eB45433A055c21a704bB68F53726Ef5d568",
    "userId": "413483366"
  }
}