{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "648443373",
    "entityType": "User",
    "nonce": "0xc13397123a2649c7493ec6af2897242b5acce38fff31cb90be64f2b18d071db8",
    "signature": "0x8f09e6eb222e9463d98e9a5cfbb8ea28584a8341b2c3aee209e6c2f93d7fb3aa705017abb6e4597ec659612992deba2815630317ece38ca7f83159d5ddde2b971b",
    "signer": "0x41169dA28a7d95b19615713245D5f46546c83008",
    "userId": "931487252"
  }
}