{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "782825894",
    "entityType": "User",
    "nonce": "0x1db87ae8d2dfe41f7e4fe1d34da96031376a74054d527847a9179512f1204551",
    "signature": "0x12e9ed4a5ad356fb55937b0623285159df88cb38cc88c672107c66a24838c647285da1a4eb6b226b65a1189aad157c9c62358ecceed1856b439e386fe87ef3701c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}