{
  "manageEntity": {
    "action": "Update",
    "entityId": "357118878",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc86ac5ca6f0f0fafe49de1c71c8b5e970f99e051b83913074eceab472cecdaf5",
    "signature": "0xa16d05fd7fb21a7f250d1480ff4baa82700deebf4133d9ccbaa4e03bf00ca6a72eccb11adc9d6b37350f57dcd70e1cb95c8f4dd28dda7a665a7cc0d0b3550df71b",
    "signer": "0xBa52AA24d5e8178c96B1712d4BA2a490937f4266",
    "userId": "357118878"
  }
}