Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f65c9a8d86774d318e80a6b9e36131a302a7429010ce1be150602fe8eb482082' 
  AND token = '6mRkQbTJl04NaaXYJYn5ixOTsYmLiZxoE13zsNADHsE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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