{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38416",
    "entityType": "User",
    "nonce": "0xfe7d7f914d9fc66cac1ba0b9e5e7379b9a3c08eff1517754a3a36c53f2377238",
    "signature": "0x5499af7c49c8dabc0bacfaa482b9eb9e9313aa8ec9f606f0c6dcd24e0351a7a83c3a7188a3bbfc4b45c3eb312775b2ac34b0f39a3fe89749e2f8ebd4d0020bd01b",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}