{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "109009",
    "entityType": "User",
    "nonce": "0x9f126ead1cfea8e6f325e480615e1f81ee2f7909c7187130e50aa82af025709a",
    "signature": "0xe6974f9b0851b3e4e06161ab31b85057b0bff88537642349ea94ba23aa91298a7d969b710f59477ab12587d9936a359ba35a24fec0145217140b6804f18bebe71b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}