Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '859a7c38ce3dee7a637e405f418b4f3a1dc6e2397cce57720551834175bb312a' 
  AND token = 'mMW449DyjRzoQ7NUpbrDdqDRx9hmBA5Zeu3AZKQL4qI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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