{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906222947",
    "entityType": "User",
    "nonce": "0x28d5bded2f057e5f3f9fda7963fe4069da2f915f270511cd6436799eddd4fb06",
    "signature": "0x8a055422db5862f992991184e602a1551d47a347f75ffbdc1a7da183b9cbb1ec1f22603905a46c81fd099f292525ed76b4fe8a4ebe92c90b85f075731718d6041b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}