{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "121113",
    "entityType": "User",
    "nonce": "0x291ed36cf01a4be8229b1f28862074e805bb01fb23baf4f38781c3158741bf5e",
    "signature": "0x928711a5633e7ca38c7918b6e452cb513359f2d3be15e4725d12c84787ddbb3d6d0da56045a0bd64b5497ab74b2171dd3e8a51d1166b1b65eb6e3ad691a6de481b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}