{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1480749",
    "entityType": "User",
    "nonce": "0xc625e0435f6cfa1d923829f0be34c9e7a49083053aaa6d7ca7c16f7ce6128494",
    "signature": "0x285444fe5fe59a3a29e5c51402de67089eb534c6abfaa7e79cdc540c9d2cbcf95a36bc8965fbb413f2b8a675c864036318ffa22eccf7389a5f23eacab00760f51c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}