{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "713030",
    "entityType": "User",
    "nonce": "0x8c1b11826d2d1b324e17358e2f0848201d177efc8e94a52778d6a376f4851c96",
    "signature": "0xb4c28518ddb4d28c2bb98bcb8bfc334c191b9aae141a2a6d44e815fbc44e96fb736bab6edbb1f98679635ea3d3a5acbf466cb351bd1a382c5caa18278d14fbc11c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}