Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '838d5449ce48a8ee6c4d524612841e6a5c51909e6dec37cab9ea07ffbd113b01' 
  AND token = 'LKk2Z0BJLQJYxsORI1mbAmVUUBFGQec8D5l2rpQYLug=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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