Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f60dff4a0e3fa7059ed6f0e7ed2bb48b218112cf9f8add6db953f8b81cc6b7bf' 
  AND token = 'vktez9qdgYscx4mlxWi7Ubx6QOuIderdBk0UPYY6X1k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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