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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '525e59372c681121c5d22f15f47e7c0c9a5ae7da66230d922c021a469d128517' 
  AND token = 'TppUGjUsuU9RFjiXO/MOyRHLXRK9GWxZa8lGcdx/5nA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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