{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152450",
    "entityType": "User",
    "nonce": "0xb88b6d0f84bbf389d6905574d81a697da1e93e38ae2f077c0a769d1c6b7c7cee",
    "signature": "0x22c4a7596ebb8cdb5094191ae85906e281fea76db8538d4cb08a52564d4813690fdae48af577ac3514dbc75c6a734f51fbd8ae7df8aa12c0d45420be7b3c1f301c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}