{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x2c06c85f3e912f970d454f750261e2b33d2d6337e43ae09d1b84dc266f863efd",
    "signature": "0x076ddaaefd51940475a9d87569a5ab9891cd4d336291c72b61f41f495d20e7c91cdff0ec1274604412438cd0fb794c2a03a5f046a9747e6f2fb71c4d44ab63af1c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}