{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x84c7084b78b65fd89953d64a8519ce0f3899fb49515a50b7d4c36ae1a8013d28",
    "signature": "0x945806c87243d15059d4e183d265bd7354e135a195851c03aeaed98ec57020062bdfa83d8bdbfe32d4b48b04a48368a65f00617d3125d2e7a68c49959cb41fc21c",
    "signer": "0x700cFE4b4B69AcB84316e2C7e5fA138614A25D92",
    "userId": "216712285"
  }
}