{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154136",
    "entityType": "User",
    "nonce": "0x90e2a61dee2ac46c4880928b37bd64f4f5270668571dc7e40b36666ba5d798b8",
    "signature": "0x587c5e99ea4964a85d88241ffd115f324d2041310abd83b83c61b193a6d7c0175465ce9de40aaee8c1faea3c889fdfd4046abda313970518e9ddeb4773f38a231c",
    "signer": "0xEc483842272Dea925128F7ea8Bb85F671f49bBAB",
    "userId": "212561617"
  }
}