{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "19702",
    "entityType": "User",
    "nonce": "0x8d6fdf69ab4e8bfb09cbe261f9d3414a54fa62bfd7b179ff6d89c82dc858c5f2",
    "signature": "0xf8a42dd4f025e893deda8d833fc17637e50d697f3a650834ff84279895121acc1802158e397c8ebb1a63ff6a1b208a6ee884fb28a4af8e9040cdcf5f8d8d23951b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}