{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "71244",
    "entityType": "User",
    "nonce": "0x1565afd2e77c38f17b200656254241e79f4c66055a813e07da952db9ac5dadb1",
    "signature": "0x4d8e0c77cea2888bc5fe1922cc744596c659f8f296ad8847ad0b9bc148cfcf796a313384c26c9a8740e1e99b24b39b7edc6eb3ccc7962fb893c9cf57bc38524b1b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}