{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf777ba3ae14a5fa46891752aeeabd39058d8a91c0dd68768c581c90f37f7d163",
    "signature": "0x2f7c8e51dd48e38adb82efcf0ff177e3143a1672b5e769dbb8bcb03c477a88470bc93aa52a582c103b20a49def3581772ce5ed84d1c0b1e0b90f2970a9bac4261c",
    "signer": "0xb8CF893bedBeC61F25914474312c4fBB6929A5A9",
    "userId": "513521095"
  }
}