{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xd2a2f61afb6f79c9a5690acc0e3a72ecd851e900be5c7007ae2e72862b8a0e4c",
    "signature": "0x70925df564ee5a6cd58f9c5efba711aec447573dc1afe4da9b710b10a1bdc2e00d9a61efe1c8273950b4e36e59e7a432b674a737aded07e2d3f0bfb7e4af22d61b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}