{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "904230991",
    "entityType": "User",
    "nonce": "0xc24a430e20f9f2be495ad726f0c52eec1f1f5a68489f69b7885c3bd53908fb0c",
    "signature": "0x40e3a3b0f965f62a861fa0873fe55632eb9faa49798552f6446570284df47b922eb9e8fc3f850ae29bd70913d1f2d0f25cf32ef787bb09242e6be33004eae2661c",
    "signer": "0x706747243B64d94c0613b28B04d5B5302804e671",
    "userId": "205114819"
  }
}