{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "694752224",
    "entityType": "User",
    "nonce": "0xd7a1e33573dee8491c92dde188d0c20f6cdf173a5f8767632e0b5d8ed9b7804d",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}