{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "868248368",
    "entityType": "User",
    "nonce": "0x370f979dfb05d5fd7a1c677468d92402cc6d60fce2473db1b2d1e9259d740881",
    "signature": "0xe28c4bb61a140712ecaca6fc9417efc93d9eb608c38b7c5f84b9be0257d95fcd14a6df643d3d109d21febadab25eb12455dd201aefa82fa61809abb3eba74a8d1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}