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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07ff0d2f2d00210125c4ebbf9ee8987ba6ff3d86bc12cf62483b00e20ac1ef99' 
  AND token = '8pDwuqTHGyWXJmkz9LCIevCs6iVitXrk+XUjSzOmQmQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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