{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdcc68cfb3685d3c3c680ee6269c7de5b48127da834433c389e0d7c7d3b6f685d",
    "signature": "0xe0f4282c59775256f4dafb5255c6defa2921eed2fec8aa0254e8fbdf781f24fe5808875583297433abca06a7e93384bfebbe182f9e8a4d0c2dea600d62c56a0a1b",
    "signer": "0x0fdbE0966d6f65E3DE225D16D06131c10d4F2b3e",
    "userId": "560630042"
  }
}