{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75432",
    "entityType": "User",
    "nonce": "0x383ec8db4137e325826f07e87230c1c3d1e24250bc930f4cb09e8069cec267fb",
    "signature": "0xc13b471e6bea324261a59dbc9977d504d16c79aa8727bc88e4349a3ea504a1e53fde279c1f2865c1686b8964dbbf618cce7825da4f4014d6531feeeeee7543ac1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}