{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5840",
    "entityType": "User",
    "nonce": "0x5e0075028e2a44236a3d9708b89b3c0d2c87e9c7baa14d0eaebb586a5294ec83",
    "signature": "0x988306c038bb1cd8ac1330a9faaf22e9af58787292aa4826ea0221d666db191a18390ae6b2086f61aca42a74c1529bc9b3a47842f626420b518f3ec7d9f9352c1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}