{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa9950dbd6900dcdcf88704ab533bcd17606d3cd3996109b510ace48918cfce86",
    "signature": "0xc8c25974d1e1f147a69f69ad9d623e47b0c3c52adca5461e49af77504a4402ae6ffe2400a4994029722d53b7f892ac72301396f4af1fde8e8c69be409c1a15741c",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}