{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5773",
    "entityType": "User",
    "nonce": "0x9a296021d3f2c12f1fc59ce13c276fd6c69705a6a3e592920f6fdbd32edffc50",
    "signature": "0x009c5e2a6f6743a1845e6a856df4e806fa985e0321fd88cc28c56256779e0eb914b1fe452820db46ad9ea1ddacbeda600deb1125f6b556e2ad59ce6e45e5316b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}