Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0d5c307f29009f98db78d1d48e6780076683b4445dcc55f5c6e1d2c0ef788bd5' 
  AND token = 'nCtpTe2PZ8qRVlzK2cJ49K81EKsIAOOsyJ/cyMKEWWk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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