{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "385628",
    "entityType": "User",
    "nonce": "0x48723ea8e8c66cd9ed8c46de794e70cc112cd9c78665130f34b18e5d23cf5f25",
    "signature": "0x2dda25d67d74639ae273567929c7be4e04e0e9c23cfe295b988a00d8a46cd9d571628670365c9b92b9314554e870da956d24c8d321f15f075bb1fed8e917f59a1c",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}