{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa0df7ec569730152ec9dbc052d7aa61ba1dbfade7ebcd3b0ce4f825de2a31386",
    "signature": "0x408568190f5dfd23915172e1e8dede157fb95eca3c73eab52a2c5ea3a1d63bb31290b597d8a3a95121e929069165a878bd4f2c9c888183049a3d3c5ca380f0581c",
    "signer": "0x62c97d7bde145A438C26C21F10116CBEecb45779",
    "userId": "769111966"
  }
}