{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x2e98a24bdf022286eeb6879f836f4cd1a2951ab35fc4a7ce19f0d4ce1c303473",
    "signature": "0x60280ee9a05b6f4e3a4757534f40e5085b60e0dea16d9a260ca9c6111f7e43466067497f4a405934a2ffcae852bcc995e74e4af737c2135a0245d9fa5754471e1b",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}