Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a3867daf930747c1e35bb1bc4e475f95a9d0ceb2bb1bea84dd76f861af822e61' 
  AND token = 'A754Q9HbG3rpg6lmzccBrTBowlvsReUjnIaf8b405+0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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