{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5680",
    "entityType": "User",
    "nonce": "0x22eb7c192ec9d21f61a75b239163b555787ce9bb90a8f7da17242d7a6ec7dddd",
    "signature": "0x19c27f44299e320082e3f83b16d7130efe637f8251dd36237b1a90e6945ddae3741d7af94ea3c19baa5681d625fdaeca0dac58ab9ad716c97c9ed72ce6a101b21b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}