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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '058e84b49e09a42b19df2ee41c9ad635f02895316cd7837527e7ca02b5ae8f06' 
  AND token = 'WvapXJtBicmc4D3uU2JA1X7lUEJlK5Uq//MJRdMLx8M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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