{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18111",
    "entityType": "User",
    "nonce": "0x0d28f9135bec2eedef71d35695bf87d4bca695de126a7059b4176deaef994846",
    "signature": "0xf4232be0439ab098187fa243abf199d92763c3e737c9a3ea0830d9c0ad6c44221f20832068917e7a8e58f2145a954be388ba9e0aed40ae1f197708b438276d091b",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}