{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "241320410",
    "entityType": "User",
    "nonce": "0xba44556a7c7c8f0e1b70ddf6d82e6af58da0bbbd86d0426296023b48aea73f05",
    "signature": "0x544e82494c5139f79393415440eb3dc391bf2a55858899b5459d7115298e55b60d940913d8f3e7338b93db95cca869198dca2c96ba58e2779492877f1c0cf80f1b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}