{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916790169",
    "entityType": "User",
    "nonce": "0x1965e40e40bbdf75094e3f267a5b1ba1e0e2be3736685f6d23357ec5cc8ed6c2",
    "signature": "0x308423297072a90f9b91fba04c058fdb21d64b72a4e9b6cf07e848afb3f02a1b66c40f2d0a422d8be2b9d00bd57a2250f1432fb6a2f3fce9eac6cca9f17cd9821b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}