{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "303723",
    "entityType": "User",
    "nonce": "0xb1f1cd1ef1cade50f4c508345de9466b0df4f3a6ff4ab0b94c4ee02dfabba256",
    "signature": "0x0fb168b5c3d81b2668c95a8eaea1b074c4bc38d5bf6b75bde89e24d2a8f374fb3f6c19f9e26a4a2cb30fc6bb0d5e9fefd58cebd28cdf541412ad3a00be4e17dc1b",
    "signer": "0xdEa655B0BEDD55605f1a7F99e27f7c00610c0B32",
    "userId": "594690301"
  }
}