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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '149ff2a08b119bc19506e0d6bfe584f78c939ed1f437ef2fd25c73e6dac7ab0f' 
  AND token = '2XkC3x+cupqKHShqN04WCOKTIJl2a4OZp5PF66Wb7x0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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