Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6a7f95f7cb8e442b305357b0867465044ffbd76cdc13f6dd3f0e37fab196fbd8' 
  AND token = '16j+2x1Mo2r0iKVp/cbA0k00iTAumjoG1stuC2edNqI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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