{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x34cfcc950f4554e6734e86e6d62691e856eb928995f6fec717c037660adf74d0",
    "signature": "0x56e183284f9a86b9811484a6c9d8deb8e11d1783813e1c3675d296eb6ddd8717385be1bfba7a9b20e32c0d5bbc6caf7de97ed36bb50c7bd93280f9dcd49c72ea1c",
    "signer": "0x2a636a7c05b8985733Eb0B0cdF93b346069F901F",
    "userId": "743586689"
  }
}