{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "594363442",
    "entityType": "User",
    "nonce": "0x4d83c9ba70dceaac2a5f9f9996c80f79c560abca9440ce8f7d77f78afed1f89b",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}