{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "242762863",
    "entityType": "User",
    "nonce": "0x5450d2d44137eebc0bc134abc21ad3ef9001b19db3a2d201c67c9329fc34fd34",
    "signature": "0xe073c20a3957835e83593078f25ee56ca2748c2bcf7f005ae5359ea02fffbb7051f43a890a740619d14425403e80047577f057b93ee0eeac08e13c8f7185c5e81b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}