{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0xfc5fa940e4db1281b0a6c5f33c4b11afe3368fb4de3beb01e04e2bdc36c2b339",
    "signature": "0x5a9485878c9ac82b035e32977a072f9d09b35ca121a133e2b8b6ab245dcf5af42e7c14119391a48c2f45187d28d90f4e1b16c3c78b4df522ec45835e2246b2001b",
    "signer": "0x0E1419Aff1544Dde5c4eebbCfA208Df83ACdE40A",
    "userId": "564626302"
  }
}