{
  "manageEntity": {
    "action": "Update",
    "entityId": "778205771",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xee67532e7590da5c32e92409705a1ce8181c6683f8b4ba91b824b23709837b91",
    "signature": "0x4907737916fa8d056c8cb9c7ce0c96c86c32f350b3cc515d39494509aba7fbb658d6d7d8d5dc74930631ca07df20177b33185947b9991c8d01ef39aeecd0833f1b",
    "signer": "0xb13Bf8eE2e414ceCab4388a4c55D3613A3b7329a",
    "userId": "778205771"
  }
}