Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1cddf64ba63f3c137c92a6e7c7a0123ce3a4c3e323f1562113815e8d46e707b3' 
  AND token = '0FN/ow8niq+GrrCXY+QRAolb/d8Irm9Lu2ySABJso+E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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