Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ace45b62c56ad3f85aa37309c5327b96a6f9f6ad59cb75917caa78af29f6ddd1' 
  AND token = 'MzpNQ+M68JxDs0UiwCi4/+kMmjpIFGJfeDnNzjdhF1E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}