Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '19869e4ba439c9d32705dd3cea1380993246e60b8e890e748095e6bb97868c48' 
  AND token = 'JGyAb6QvCpQOwHVPOejWcfiKxVr7iH0ojJbPruiz7Cg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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