{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xc0ae2181d82ec6deed28fdfce3deb165c6f9dffa391c9c45a9839685271c8f53",
    "signature": "0xc5e752485ebd0ab4d1329e27359241a968f5c88af695fe9cb8f242a4a048661a36b11b0709ddc6a9b6179492884d705855b619e32865b710d0c0bd0155e4333c1c",
    "signer": "0xb15d7053c985Edf1d74fFc9893ab67Fdc2B33090",
    "userId": "211545300"
  }
}