{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "172178",
    "entityType": "User",
    "nonce": "0xb7c7fb97d00c763f20226f97cee1b2c801cdeba871a654a4c7a5cbd90047a19d",
    "signature": "0xb484e5dd23e25f3a6e2f1233ab01f422c6cfb683281b17c229466edc5735e85121d67a7c997703c5a83da792a51259ad1df3d40aa993589093b36e39b06241881c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}