{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "387832",
    "entityType": "User",
    "nonce": "0x3bbe1218b5e8b0076f859ba3e00c238518ef0ebf0c0d5dc9e5ba4a86edf5f5fd",
    "signature": "0xbd71fccb711eae7c6c159964bee787e428a35ecf6be6e3a61d0bef30eaa40eb05d8a9d3848fb07a227a23b95743e3907fdfe3669638bc559373b4aaeb1270b691c",
    "signer": "0x101a0B7DCdaA192d9B07322E13792e3d5Cba1634",
    "userId": "689010269"
  }
}