{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "331347",
    "entityType": "User",
    "nonce": "0x40fa18d7301f26d3261e7d768e54c8e87fac34240b802e320ae6562a2140709e",
    "signature": "0x17104af9996dda493c5c0509961266e6d681e0221782af874c68b735e7f068705f010704b3dac4b8487d02587a7db3ca320b2c9132ca3c117b132490acbcb2471b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}