{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x420f576b25ba331506267a8152dd3132a3e714de330e95b77b78f2af25f12d79",
    "signature": "0x9d6d134a9886de860a61ce6d01934be6d02c7fc0c89ac08e9d73cc2d12d9943c0f2f4b42ff155818022f77feb1cacb967d03ea652bf30a2ac01849db8b22f4af1b",
    "signer": "0x1801a170c1eD9867B3079f30858f587fa1D0fF3A",
    "userId": "566883717"
  }
}