{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108164766",
    "entityType": "User",
    "nonce": "0x6b558afd246457353fe98f1ee81f77ea90475ac8ae5825fe408c59ccdae6d03e",
    "signature": "0x63a008abfcd6b78c46de0cd59e97d92707f791674c6563c612fddd9e4a5a7d3c758783469458a58d4fc6e2d8d745a7ff98128e125e73719335a973226068d6501b",
    "signer": "0x8Bd6bff4F6E7A0563fEa1235f254F88728CD3704",
    "userId": "307166514"
  }
}