{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "555216",
    "entityType": "User",
    "nonce": "0x4e8cf48425fbb7405bed3d2a891b243249d3c3ff4164cdf2d97a2ab386f8c9d0",
    "signature": "0xa264cd795a4d4d6baa375637190d6f88d55d285cfc0b7b79fbc875995ea5055d104169148b3317f5e7646d2dab454313cd3296b0a2581809f2eae4b51fc92d0b1b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}