Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cb417802cf4f9f6cf807a844806012b14c18d305f1fd611395222055662fb0dd' 
  AND token = 'e+8T1PPatAIGX3HKi5O9Sif6hoagwVXBfL44gh74U0I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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