{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf72aa00ac23a9970109e37d371d42e38414fcb85fd1d512b81bc2479626c2567",
    "signature": "0x2abe43103448cba9e79e6a0ef4aa9856b76b3f1d842ca5b669fd0804f381370f0a1b586ad05eaec7149d1d604da8f700a894574cde3199c8e9f50d2a06feb8f01c",
    "signer": "0x3c5dB67316c34133681d021a8B3a38C2E255e156",
    "userId": "330630035"
  }
}