{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157194",
    "entityType": "User",
    "nonce": "0x422e967c2ff2f807f950ecea4980a70dbb05278dfd22317982533856862f702f",
    "signature": "0x4357e9eb07f4651cb73347ccb2f33ff4dfd51626649adb2eb1b4768051c387ba55861dcbb878448a38d593e8d6599659303e44c067ccf3481a09454e29d1e9fd1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}