{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "528688046",
    "entityType": "User",
    "nonce": "0x3ab230567c832242692e2bcda2c5b12ceaa522e6521b7b2fbc07eb8b85da07bd",
    "signature": "0x13dd9179656519efad284d456284381586e9b5632485cbbcc376105aae541160076c1911d982e72f3cb70020eb3fb00930845b64bc398ac7d1c1be2865eef0f11b",
    "signer": "0x3D472a01Cb831ac594835ac6038A4346E2A22B94",
    "userId": "327343"
  }
}