{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28442",
    "entityType": "User",
    "nonce": "0xb31ff9d13d18443d44567f6891bab303f1df33f6244136b2caad0279aaa35993",
    "signature": "0x69452520b33a242cf91cbc73680705ab37792026b6d62e0554d143e4a1c1b09a14fb0b237af1c20b232e40e0ca70d85555cbd77d7428014b9ad63af1b65c10081b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}