{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "496755",
    "entityType": "User",
    "nonce": "0x4d0a3b8f21e33d831a042b95346f0ad2746c46f53c52c1e6bbcfd91b418c598a",
    "signature": "0x263aaa03fb4a44c9db3c9d07a5bd463ff9514f8931aab3982f72b0a81e9a92437e9e8c0d5e9a55fd1131486c795902f2d178c2009683aa7c27bc1d58492503e31b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}