{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "187528",
    "entityType": "User",
    "nonce": "0x76a7f4158b5d2ed22f5503907b3c999434fd38f7bb53618dd1a710949f94b899",
    "signature": "0x362de25a7c18e2ec1c3aeb74c94ad4fa66cad6207ee2089a07fd5caa394c771b709f0b7ed23b01f0fd3869bde5bf952b371aa2487287a8150f5c9c35df0c5a0a1c",
    "signer": "0x84683b76111c0e04b93499Bdd6801f25531DD5b2",
    "userId": "98061637"
  }
}