{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "386745392",
    "entityType": "User",
    "nonce": "0xd8cd7b098297a628baad9106af628acd446c4788e4251793c29b86efe5a90dd8",
    "signature": "0x4dcd852ce7012a8c459ec6f8be79f7cb0f38cce5c677413ce7f405218a9b80823988b8e4bb88e4aaf09c648938d1be84fb7d23eafcc1065c7ee857be5b85d2671b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}