{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x20488f45dc6a240a8861c24d6ae1027adc11a29813a57df6bfa96875b461320c",
    "signature": "0x2b756e0f951eae210811943e04c73ccfdfe2a4687aa66855383ed0105417bdff6a7bf2af7c4d4e373228ace0cefef36fa5ab32d9c4dbe9184d4dc7014dfc21ed1c",
    "signer": "0x10b1aA99f4d45f4F9480B286ef4D17f24dA48057",
    "userId": "266083984"
  }
}