Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '813b3f334716ac577c68d091358bc43ceb749f8f1d029b6ad09cf71f4612998e' 
  AND token = 'lZ6gZ15onMPwwe3926GrQvA1ehvyqp53YWnJclZZ4yU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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