{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "715961491",
    "entityType": "User",
    "nonce": "0x39570f3127fc8e2f56622b39f454af52b20d6b9523bd3757e293007e08b7e64c",
    "signature": "0xf05eb86306e600267dafde121f58b307cb4fca63279883aea4e2688dcc59212b21bc0962f3e36982835656b0fc1194efa53603ea7c4209b36e00d47a910004341c",
    "signer": "0x7D273271690538cF855E5b3002A0dD8c154bB060",
    "userId": "1"
  }
}