{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "676581728",
    "entityType": "User",
    "nonce": "0x94163b236b670074ed6891535bcb253586bba6be76c143b770cdca0b948f84cd",
    "signature": "0x881d8356effdae6e6d3a2ca8c842f39c3725766230c4cc115522791ce35f65db73906df1a31835a25211f767aaa908ab93b5d57129c4a8a4efdeed3709451ded1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}