{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234183",
    "entityType": "User",
    "nonce": "0x2ce4d388427032c1d3381d816ec8823cb84e4d2c4fe9f2145b4047f114957942",
    "signature": "0x3ea36e83842e5b0ef9e6f3a91cd02211f9945dac73aebae8c11d592566aaf2e91b7e442e5c4a19d49ac2cbd2b13be2d757129bd6b848bebb57a77059bcec01cd1b",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}