{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0x3a27388814f00c105af80d96a2dcfc68bf15157588e9077f303c380e1f6525e3",
    "signature": "0x97d6234afd57975aa9a87b51ab2a9653c124cccf3bfa1eab1461efdf6975e7870322d23f64e59d3499357f7080acdb26da836a889644c72bb096c0459904be411b",
    "signer": "0xFacA45731f376Ad08B3020679B8e608Cb8731E3C",
    "userId": "234994159"
  }
}