{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154253595",
    "entityType": "User",
    "nonce": "0xda15a66872a381074dd3ac984659b10925f56e91622d4166ca3b13f5906a7a37",
    "signature": "0x1334c8b0a9bc2bdd01b39c3f665f3103a6b7e37175c6d3b84f549e3116d5fa737ef87dd2f8e2f872431cab2712f1ab5ca0b03c0468000f52fa1397f01c48711f1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}