{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395416959",
    "entityType": "User",
    "nonce": "0xdb13762ccbaeae57e0ba3a797e37767489404ca106317ff07c69ecba0e51ec6f",
    "signature": "0x6b44ddfe0bd2f8d2bb9337f2e20db54a346e00dcb69da87a6aa12f539feaf88912cdd9944cadda2e57581bb263c6aa7a5b5033681287cbf7ab497bb854721dc41b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}