{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395996456",
    "entityType": "User",
    "nonce": "0x7b9601476ec2ddc8de5250d2203d56a2f19ea1bc033b60389cb1615a1ed43eb1",
    "signature": "0x2147142bcc411ebb4d3633f500d152c5cd4b6e050686e88ab4bcb4a85de5c7e34ae32b05222f279a27f9024214b5b33a47dc224946e83be2dcd537edfdd2b0eb1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}