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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1f009527b4f928a2a66260a0ca9722a59fa9f6568f9603b476156f8f2af65d8e' 
  AND token = 'cjO78976sWA7qPtufq0xVQsWB/yzRv2W8b3Im+3E6iQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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