{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "281054123",
    "entityType": "User",
    "nonce": "0x5aba603c6e09a977f3315040fceba1c597141f8d99caf0912e962c1945bb9084",
    "signature": "0x432c7b4c7d211abb419f23bea37039397cfc0ee6a797134382431e2486dd08c80f2a7b19ba6af6a35cb9dc727a895d30b64737de154891723d271303853cc9b31b",
    "signer": "0x0d0E0D19797534AEF52736C60B52793E9f88e24F",
    "userId": "603294620"
  }
}