{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144203",
    "entityType": "User",
    "nonce": "0xf14fd7eb7f116eb5f6fbd94cd8311a683cb980b4c3b68ba9edb15f5ee36b46e5",
    "signature": "0x0e44873b9ee2cd596d9a445af21a5adbe8cc3b471505b169ff480c95206eb68906c57893134fd02aee700dd2229b38917e4f0bdb1443682776054a648f73a3151c",
    "signer": "0x3765700151BA1793CFdF9F4ef4c8fECA3Ea076DA",
    "userId": "957835565"
  }
}