{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1477402",
    "entityType": "User",
    "nonce": "0xf029fb419d77c8f1386a204fef5aac6da56e2c403457d2b6df22ee91158ee45c",
    "signature": "0x3977e2a8dbbccdfc1d8cb69538d988d11182fdf7897fef017294a3c99bc7658766c4c156aa11b2cc6d796f1aa51c4209c425b8d3ce24e3f8a08b86e47503f7501b",
    "signer": "0xca7c61d7Db568b81B8A952B917F45dd863B736F1",
    "userId": "144109"
  }
}