{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "742907554",
    "entityType": "User",
    "nonce": "0x9d2de2b73f6c7069d74a6ea754e55306e5c9b9a7a4adb80a6866de8237c073bc",
    "signature": "0xaf48a90f4fad674f1780ff59cb727f822a367492e79a0b353aee62eb861eb59506aa855fa26f7badeb38ba4dae3c0d26656548ae6d802b0c743547633b7f75231b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}