{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6236c697200cef6d58e22e67e07229b3e86e2234f12fd27ac8933381ce90e0ab",
    "signature": "0x5fc29c844f3c313510bf0971e3dd4e3576c18f4dd9b413aab3fdb532643352d0134dcfeafc0f9933dd2de9223988a25b464cfddafc570f66e7997d87cfb2b1ca1b",
    "signer": "0xacDcDe8b32d8E9Dd3D0A2F88F2d9059F33f38232",
    "userId": "490442939"
  }
}