{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "898121894",
    "entityType": "User",
    "nonce": "0x43908dc5711a42acb5104d5ce8a14d4216b98ad95d37919aa845c696a8fa58e2",
    "signature": "0x2567cda0fcba9ce4b4e5d18034401a9efb4c8e886a747dd9d08fd664da5b246e4600cefd4e0e77ec13b8dddfea02f2006e4de99016df4257ebee627c4595a5d41b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}