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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '06105ed5a6e793c2c674f4ca4bbe48e1bced801908540d038a57f19500413ff2' 
  AND token = 'Tf7gdwuQ0tXP0a/0JzM9arVjiNG9U8oKvKphX7DbZkc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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