{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "307093",
    "entityType": "User",
    "nonce": "0x54d62a62537853e8c62d216044e76db93e2013b880a0a1892faa256c48dcccb4",
    "signature": "0x57c533998bae90f93e906e3dfc1de7b5ccd35929d696ed9a86966606d48b6daa71da182f1bce01d223a6f28d4b708fa8a6c51af5b0bf4725b8eb617dfafc1c241c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}