{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2012591",
    "entityType": "User",
    "nonce": "0x948e89c3d69a6a9ff1c251620a021432b721c6a643580fac671d39ea1935cd94",
    "signature": "0xe00c6b1aedc83aa97a3cf95ba15992df9c7526121dcc68071d9aaf224b8a3c834dc044291dad171eba4801de8bd8dd3b29c4d9740c33ab8a4fdcee4aa759d9941c",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}