{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54299",
    "entityType": "User",
    "nonce": "0xa42d6ae388e484c3a43c832f826d78540f29e6c6b1c5a7980913ae3e8ac96964",
    "signature": "0xe36010c36c74be0ac37892a0e85e2dd8127b094b5472e63ee6916815e5c659995d12eb3d4987772dac9bfb48caf2a807f398a2ffb3ca9f73df5517dbe619dfe21c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}