{
  "manageEntity": {
    "action": "Update",
    "entityId": "303606320",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfa4b57abe97a47eb1732abb922179ebbf399412c7c739461f574443f85ee7594",
    "signature": "0x1e3b63421df4008734e62da0c060fae6b81ef1b7f233ffe294c6e021c4aa58887af0ec8099b4e90d34e305ec683e651dc1b69e3e81e4ec3e9c3eefe7a60c4d061b",
    "signer": "0xfc7064Ac6bb1bFe42B00EEE14298d29bEC53611F",
    "userId": "303606320"
  }
}