{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "227522",
    "entityType": "User",
    "nonce": "0x5ff6bfbd2b0f0f65f05daa15cc440b9faf715f9b7bdaf62299592f4b1a9e1407",
    "signature": "0x5928d7ec150c0e34ff8cf73d6ac9ad554f64b6b41739f989d6f5e5071071a8c82610af17e8e0e16283bb151fe00b458ce807e378c41b036dd808088bb73f13c01c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}