{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294973155",
    "entityType": "User",
    "nonce": "0xeb309ce8fed15a45595f6ce6c0747a138cdd82a3d873873b3b4219810727b2a7",
    "signature": "0x39c7a10ad7315ca89ca8cc812f401584c062dc1c912cb544667acea70c9765a47ed685ca3acf5913ebd97066e9b061f876fbf5ee6d6b7683ac7bd48abd12e80b1b",
    "signer": "0xf9Bf82B2ecB609ee37250F00C0835d529331385D",
    "userId": "654530894"
  }
}