{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309080",
    "entityType": "User",
    "nonce": "0x27a6ea68b28e951768e4bf4128dfb66b480f107b8d9400efee61c6a1c8d54b81",
    "signature": "0x4a344d18f9b9f5acb302da325ec8749751de5682457ee1047daf98326c68a19c631f5c79372dd96ea44e3a96167ed0d65feb8ce35d6032a4ee2645312fa969741c",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}