{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297032",
    "entityType": "User",
    "nonce": "0x45963a1f233a726e173a8949c9e60bffbadaa7ae84891daeba3027f83a1e3e70",
    "signature": "0x40025283e0b60eb0a4ecd24bf422cd3e3fc7aae0929ec8caecd24d3b6e5963da2876dc49941e7f3a06204fa00995ad731e09f151a97d92dd35bf8501cefa09551c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}