{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306608618",
    "entityType": "User",
    "nonce": "0x65b2a92a48ab31af5c1745be1ac3850318abdca47159e78ad0804fc4d0e16182",
    "signature": "0x86957fe2cdf9f1134b4d1f5fd0cba3948163df04241d8117369c5cc13e1d8f0861c4dc0b32ae3123197f641705bd70ae70449e5e62a424afd4325307d6e8f4d31b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}