{
  "manageEntity": {
    "action": "Update",
    "entityId": "493506106",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9767bb36322793f155a9886dcf870a018fff28256874b0da839364e3d6ff9757",
    "signature": "0x2186b06c6ecf081f6f46c04d32fe37001da2c36773e60dd029c9ee7e644f62767e3068c0f24319c4a8d986a8cdbb22d92224d5afcd22ec154b15ce121fa8e5b91b",
    "signer": "0x28784a74C0875faa0083d51DFd55AB12Cca6b3Bb",
    "userId": "493506106"
  }
}