{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870684573",
    "entityType": "User",
    "nonce": "0xe4cc3be07c74d029608f7d92c906c0e4a4ebbee925c64a2ada04df7f933d2041",
    "signature": "0x790c0abb063ac60dbd76001c93b08afc8338b17a64cf1772eb4fc85a5467549a017bde9c063644f5f46ea2dcf1a32c38975eea9656c054139c66f884a51594971b",
    "signer": "0x52Cb4b468190D878a90e6d678064532b2405fBC6",
    "userId": "184931764"
  }
}