{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0xdbffe18c402be8acad8b01a5f2fac97bad2657f84c83f6d1c7f9f0c4ec9df6bb",
    "signature": "0x24d83022acbb83dd00b7921ef615e68b38d9f276a546285ca76404a562ad42587d04e3beaa3470ac1e41bd19a168f1ff74ca4eb368d79ba3f216ef503f108a261c",
    "signer": "0x3d3C9a78785e201CD119b8f74d7d88D131bB3cb9",
    "userId": "350266629"
  }
}