{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1462813",
    "entityType": "User",
    "nonce": "0x5eb537422202c857528de43e3a69407a335659e037e3cbac5c83f55f7a60a8e9",
    "signature": "0x00ca91fe498e64adbfb1c90eec67ae5a9c139e8984e0d131e908dfc91fad6b645fc9167078aea393070f7c3fcc2574c21356eb374d8b7300298c6cfb8da2cf801c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}