{
  "manageEntity": {
    "action": "Update",
    "entityId": "632145703",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdd0543fa5baf7046532273948ae49480d0c6e62af3a8ea647876c1087cfaf79f",
    "signature": "0x34912ccace893c367db662602b56184124e07fb82e1e89a0ba9dd481d3640e0942ec1fbab85999d1b0238844bf720df10b52a3d93ed57a469f5eac1f239c1d211b",
    "signer": "0x10781Ebe0E281ba4f1c3880607EFF25Dd5CE7DD8",
    "userId": "632145703"
  }
}