{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125044",
    "entityType": "User",
    "nonce": "0x3b555dfaf2199e267b82f7e0293204040aefc504cfa6dafd6e4bae01ed333fc7",
    "signature": "0x744b36cc4a6246ecc75306c563b2325c9b9e750eeecb0ae4cee2314f3c4b057c2cedb0e2ea8f920c34b5fde0731ae2290ccee886209b0a9dabfa7215c7010b631b",
    "signer": "0x4D1242D0da3f49195E59794290Cbfd833cCD04FF",
    "userId": "627952347"
  }
}