{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297007",
    "entityType": "User",
    "nonce": "0x1de9d8247e9353023458733507a7d8d5bd6cd7dd66cbc04ab7779014b6e32c4b",
    "signature": "0x88e367a89d3302d7286f72b0f8ffac71035ac6c7205cfc5fd5cbc3293680ecf27f0193ad3ad1083d8c721b7b9b47aebf6efceb63d5533c2a6c7022c5f6fbabec1c",
    "signer": "0xdA0eFB0e7b973C487c12501759aDb23012CB5248",
    "userId": "178070"
  }
}