{
  "manageEntity": {
    "action": "Update",
    "entityId": "908398457",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf6d30fc15adce96b91fa0e08bce440d48ac60d7eda3850b9c0af7e26e6315b40",
    "signature": "0x09e360f7a92c05a801a6e7d552905bc0b4a63b21c0a0a0dfd4e130abdee41fb84eb9a3bf979e63785014b5c6fcd312cb3a813698635b182c3142a5e7b96b590f1c",
    "signer": "0xcBEfa88Fa365b5f3Fb8A75116D2be36F65EDEbd2",
    "userId": "908398457"
  }
}