{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "608645733",
    "entityType": "User",
    "nonce": "0xc4bb8d14aac302ddaf13acd58716b0249005c0b26ad4be6ef074a4aa38849c0f",
    "signature": "0xf4155e52a994c35c80c8e121c97ebbba3d43d0eafbf48e6ff17cb343806351a02a8fd3279e0dead2a4fd1776d401c4307ad5fbeb1c7b4bb50add76010027ba491c",
    "signer": "0xb070972972ef5B5E404741ADCAc11792d96Aa436",
    "userId": "228777558"
  }
}