{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "14101",
    "entityType": "User",
    "nonce": "0x9f5ac4f518c157f36113769746140129cde5a77a4ea438af833469c7e7022643",
    "signature": "0x9a572a3ef36f994bb1705d7bf7e23eec0c48ead4bb6ae418b01e657767782aae0c5cbc9a4b1f2728efd2cd15c5c38b769517021ff5b49a3ee763e580b720e0c01b",
    "signer": "0x90D649f24D80ffa4231f650fBE75e9Af27283497",
    "userId": "367633290"
  }
}