Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7f20229ee55f0fd0aef3faad2c148cc31339210ee6d0a4ca20875993861ed19f' 
  AND token = 'WrlfE9l+AdwDV/NWsH2E3c52cH03SYyVwEZLPWAAvPc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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