Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cd2c37896d152f4f96f21712e9cf88927a9c3cf863e7d7e61b6233eb9c9546a0' 
  AND token = 'u1Flo5hLLJr0Sw4/746HY9PaEKu1ifPARyMctk21rWA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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