{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "142628",
    "entityType": "User",
    "nonce": "0x63f4668fac8be4993a0c8486e9c6cc2ed8b79e95c7410c261e2a35e9abc93d20",
    "signature": "0x68eaf975561f36088734a4cac854d345abb606d61337abbe807ca92f123709063b4732614494914592e5110d875a9b2ffe258c65edd631240f73c68cd584eb891b",
    "signer": "0x5e7f25a2fe2eDC54B537392F6C640A13ce05E1bd",
    "userId": "953903966"
  }
}