{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "112502",
    "entityType": "User",
    "nonce": "0x9ee1e30b848eb6c37a9754cd3ae61f847395cd921a30c5c74df0e88a3f69da58",
    "signature": "0xaaaef9eea9187429860852e5617ae5d0a13a57f611cd106022b2c4fb546553850f67c4b9900e602f5c86c7a2ebdd7380b68337aedf0a28a6c38e027bfbcd2f9a1c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}