{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325935",
    "entityType": "User",
    "nonce": "0x1957378605551e634364b2e500fe82ffa232433fbc037e483f88a86d6603c5aa",
    "signature": "0x58a278ea38065cc7318ab214eca621d14aa74df46b7a1d551740f726a66870d307e0191fcaa762646e6de37b667b0a9d4a5fc8c6da5c530fbb3b66267f1b06641b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}