Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '707c2432b9035a573354952e788a22ef0e9c6d5fa850192eb31b0e0562b95574' 
  AND token = 'Woqcmp8oh6pjDf23RdIMNFBFnRA8aYixtuWKjUHtm5E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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