Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'aebbb25286006142e3c4812aa491269c4764e26faa600491b31e49c62c4efe00' 
  AND token = 'kyE1BpD1MFSRwbvp6tZ4N0rBgLRmGAuSCnAILIlsTs4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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