{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "191315561",
    "entityType": "User",
    "nonce": "0xb33b16df518bb6514819cdf568f57c0a23687a9e4417d5b76723ccb42ff441a0",
    "signature": "0x93cee94b7332d26cb71699bea624cbab357319668cd39051a9443f2abdfa449620d199b915c62aeefd4aaf48578bbdcb7c976b172f25e94455d2ef4c73c3177e1c",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}