{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "712516",
    "entityType": "User",
    "nonce": "0xdce4736bf996d36fb571572211aacff9e1bf3e3cd2424c6c674ea05f92ce92c9",
    "signature": "0xb062c4fa5471fd43bcb448b2790692f00ca8b1dc43d503224ddc2e5d0ee83fa7459afd30e0cb0e2186a1369b345ba7e4636c7315a529efbdcb1cc80be1738cf91c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}