{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164496369",
    "entityType": "User",
    "nonce": "0xa513086e3e846486aef3a2233851fff9053114b09a4eca85fe9f3895111f8e41",
    "signature": "0x1b48265af7c5cef99f01fa79e38dd680c657e34fffa8f028ecb66d1e2713a97c6bab4585691735b6a74dd88b6e13a99cdd3e6fc19476c38faa30c5d1c26895521b",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}