{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "386992",
    "entityType": "User",
    "nonce": "0xb923fc842348f1667d9195ef1471b8aab3f9711740a2cf9182ea9993b49a10b6",
    "signature": "0x6af0da849886552d39090bec5b7a4609781fa2051948cce8ae24cb13082acf8929eea17c2e3876dcdbd5e402bed26e88e9bf568f684aa1602b7e1dac76edb4611c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}