Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ed3c1f3b6284fd591ef13fb377f52532d19c98f5dcde4021fa42d08508d650f6' 
  AND token = 'FNWjXV1lEm5+QesV3K2lr/bK/umZ8uTOcJK61XmOabg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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