Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'df75e36b490c4e932e471d4c3f8e68d1a641d54104b5a164c5c53290ebb21a80' 
  AND token = '+a8yq3gFnDAXWkcnAV8n9UAX04Uk4JSqfbfmokEamEE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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