{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64629",
    "entityType": "User",
    "nonce": "0xdd6048f5a5453d2424c06ceee97a009d529daf1c0846efecd350c5be53ba6e73",
    "signature": "0x13c6089c36cad685942adc2a6585fb4944e06796821f57443f78cd5e9ee5a78721fd5859055a454bd571877a843cb90280156340dd4d5e3977a71502a35108901b",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}