{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x32ad7c2dfeb2c89d5aaec3258ba1e2e6a22da91e19f503a88013d712caf948eb",
    "signature": "0x03cf052e34db2d7da15faa1eaeea941c81531223291a94483153424fb5cb782b743ca1dc4aa9ec67f1e6e88fe93cdc24f069ca5cbd44024fab038fc9825cd4b61b",
    "signer": "0xad2Fe429D4DF97717497A69C167Ca91BeD0000Cd",
    "userId": "154877188"
  }
}