{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x0f183bc941eb0dc7e4bf43e6f34fc595c8996f8d101d65679dfabc633eb613a6",
    "signature": "0x1cd5617237058d350a8a21cc2cee2c7143ef6b3bc36c687c00c4e39d6630f7675c22a50e2d611cb514e2ed46804cff7dd7a3f105c8e61dcdc4c719a9fc697fd21b",
    "signer": "0x33c702d534707f8Cada5DdD521C5900827973f1D",
    "userId": "5642"
  }
}