{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x23180337daa3ec01fdcda4745f88422aa83ec9252eb77b08bf90270cc81fd384",
    "signature": "0x2ae83e150e41ea37c02376ebcccab3ab50e326e59bb0d5aeb0af51b3c09144f30226fc7690b2a37b41c3969e246a1b6305d3de4aeb6a8747d8ddad58fd0a4bfe1b",
    "signer": "0x4cFd9635b74edd6514FBb781B9C920be24A36AfA",
    "userId": "376830101"
  }
}