{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "323361833",
    "entityType": "User",
    "nonce": "0x54589bf0b2a1a8cd6a78c19c45701cb2ba4b53189217b420cb765e8e1ba1297b",
    "signature": "0x043eb1afa75201f3e8c6f25ea43ac9670a6cae2242e18a74272e158dbd1a906301f8e046933937dc2702397325a98b24be60c087316b796ba107c0c9376e39341b",
    "signer": "0x616e636616DaA1fED23D5baF54ADF0e80624b961",
    "userId": "52309"
  }
}