{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "24951",
    "entityType": "User",
    "nonce": "0x4155c96717c29af5e08a9cf866d13b2aa18391aec1f54255857ab3a439d7c8e8",
    "signature": "0x8f5b99e0a50b3a4044de3f3944e7a91ffd58a4e87cbd2a0bc3d2542ed4db850f6b877d585c01cb8fb25a10ca1a556662d10aa11110f432a43d2e4ba06f299d9a1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}