Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c7b9427531c096fa1970dd5c56efc13667698d09becdb5b59afb476e3b19d7e3' 
  AND token = 'Ew4nyfoBCBVI5x8pKwTq3pRPTKtXfxLX4Pzn/MSSUxw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}