{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381084983",
    "entityType": "User",
    "nonce": "0xb0e0d3153d044b2063a0576a1674eb60fc2e06ef8decc8de027858ecbf0da466",
    "signature": "0x2d929e6f315000de53a21f9d2b1c095f2b9525fd8f4abb0ee4b44cf2f31f60a1121468899f01a406b98f4ab6dc305fddd625fa50a82ab59d1a7a392b118ebca41c",
    "signer": "0xA2431a8293fD33C6289244D08A91489fF2C9f18A",
    "userId": "325308787"
  }
}