{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50737590",
    "entityType": "User",
    "nonce": "0xd5eb6e04b2bdc75ed327f9d43cc7186ea8cabc2707b2c51f1a7ca7e389e8fde1",
    "signature": "0x500d23d5e980ce86f9c31d8fb07e7577d664dff88d547eff7a05dab61f9fee9f7fb38fb7fb82ec3da9f1bcea2eafc9b58011272dc2d93696fa2032c543095cd41c",
    "signer": "0xdA0eFB0e7b973C487c12501759aDb23012CB5248",
    "userId": "178070"
  }
}