{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xcfea15d2a5949368da0337ecf022905abad0fd11c2e5c2717a41d3e351265208",
    "signature": "0x50c39d38b119ac39cbf8aa424a46ffe044ac3c2965307f84d8017a6b651daf9d0e352bf300fe9a0dc4068e911cd015c36690d01a565e1404700b9bf2d25986c41c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}