{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa71943e790e0bdf4fc1374f935d87f28246af07c24bfff99613f14f5d6eb039d",
    "signature": "0x9a3d783c3206df7be58b3adb2e8823c6d10aa3c73562e7518c17b670b3de33321b8ea3fe00e9786240fd8dbc91086098bcc804cbd6f52824764ddb5722c113661b",
    "signer": "0xeB19B44f7479B2f07c2a9D2CE20E42244add392A",
    "userId": "460208108"
  }
}