{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "29243",
    "entityType": "User",
    "nonce": "0x4c1ecfb0521158d69ec6366bfe96345d2a8f1084d830069a6fc826dd6b3230c1",
    "signature": "0x6ccf9bf731281c6eb9cfcb206d70d1a4c225c86feea2d14f8b1a58cebb42cc9f76e21c19c9edc6b754d77af5f0ec8d55d9d1c36bca3883db28295a672858309c1c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}