{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1856",
    "entityType": "User",
    "nonce": "0x255adbe4f2ff80dea828b819990d97f563f72bbf2b143a6f107b5ae3fe6102d2",
    "signature": "0xcb087b9c53ddd9e355614dc4503f9b833695a462a1c1cb9d6e91eb6f50e017d05d24da0db2ab20b6a1984191ebedbc4bcdcf697a90a7f4221b29b6b365992fd81c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}