Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '08947fbf96e74d79eff7d453ff2ce3ded971c006713ef507b3d8e2bf43bf5539' 
  AND token = '4Yf7gMFjPkuPCku3ROG6i3oOcTUWovg6MkN5eewcMs8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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