{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "960936323",
    "entityType": "User",
    "nonce": "0xfff9748fe404844655816962d1f5aa493aa09f31bfbe8f87785309e973229aa8",
    "signature": "0xb722c4dd2c9bedcf1e5ce6da0dcb150dde0cd4e7024314452c1388352859535330c717a7daa281ce0d912d09de9cebeaa3b357425463240fcd2f3e43488d0d061c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}