Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '85badfd1be579d6dbf90ddb000dadb97ca7aa3580610e6437ec7fb5893b2e9cc' 
  AND token = '2QJHs60seDiRidZVQUnL9cp34hsD4TNMp1dnkGKUlTs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00051

JSON explain

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