{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735980234",
    "entityType": "User",
    "nonce": "0xb5b7bc47e133d1f66ab3e60ec256e124975d29d6cd4612a83f43d8a017135e91",
    "signature": "0xb6ef9798e4a8365db809a25961289f285d7a5ed4d11ad1cc098dbbea718a731218228be41cfbfd899bc4057ebb25257326750204f8026f19135e4e5311490a421c",
    "signer": "0xeFC9B78A20535768B9d5BCd2702b853bd5C0789c",
    "userId": "333246"
  }
}