Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c07ffcddae57bad0a669a2a4b7e72bfe327c783bcf196073e2d953d364723b7e' 
  AND token = 'yyN1a208miOIP6QjDNFScOtFFf4ryyP0PW/mwuvLny0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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