Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '80d6b5e8911869e9bf8c697f39b0b4e21f7a59c3fb188390e492839d42242314' 
  AND token = 'FvVWcfAa2uotc1k07/QQoEQ/HOyMpDKLAUjMNHA1aAc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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