Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7001ceed6ac4d974e46ca5bab6db3bb33582425b4e9686c8e06f0d2923aef194' 
  AND token = 'YyfGEFXKA/svyw2qYNBGuViMC5Y5vkN3A6TxCMG6f8k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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