{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "68514",
    "entityType": "User",
    "nonce": "0x0fd603099fd92154943294e5bfe8f3b2bd5902544b81a08fada0159487ebef1e",
    "signature": "0xb0d1dd6f7a2b18697950770b814c0866337f50a4d9ec3e46cf3ff9a3622089226c8f53e13dbee55b41db52ab183d36a903feb831d1fdff64cb25764e4deee0541c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}