{
  "manageEntity": {
    "action": "Update",
    "entityId": "355266761",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x711781abf8b445733b93bd6b358409dc89a55905fba067cb9cff533aec4099ec",
    "signature": "0x854cc39c2539fb92d6a7990f2bca02002507cfcdf44a8fe93b0d5a3699dd093b2e105040710b4deb397364cdfb1b8ec73cd32c06f5b54c4f2f0b900797c522481c",
    "signer": "0x08841C70270Da423963e1F5Ed5F457A3Ead06D53",
    "userId": "355266761"
  }
}