{
  "manageEntity": {
    "action": "Update",
    "entityId": "317750810",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xffcb63d796ad541a6c297d511b4528cec45dac23584d42fa535285c6fa7d4d7b",
    "signature": "0x0080a88b4dd6ba4bc2388f12e839fd6b0c08f2b935b83ac374f29dedec77a7047641c971c1792dbdbf7439ab3545245ce2eff99a367e0b83bd99a17c705cf21d1c",
    "signer": "0x5162CC8aD5b61EA445bE98377A77750B79c70d48",
    "userId": "317750810"
  }
}