Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4aac9095f90cd053387fa2aebbb6e3da383907e82752c0ea73fe272a23a24080' 
  AND token = '3EZuenus3rcjyROoeFcnTnk6SA3yYyjEAs++S4QK1qw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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