{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43631",
    "entityType": "User",
    "nonce": "0x81a8ade6209e92f797dc467f94deff61422b07ba2909c0c6701d2f48fda2ea66",
    "signature": "0xadc2fcfb239a212115b29ab809cf46f71938257dea3dcb17d7ed2e5374c2bbae418a8736f9222769b5ab26da4566d26c55bf6c456263e3a23859c8fb642cdb8e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}