{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "893863695",
    "entityType": "User",
    "nonce": "0xf2799bdd81faf3a6f9d72e0a821403f5b001c2b7f7b3666c8f5b9746feae3f7c",
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    "signer": "0x6B239e9B75f27b519de7Bad3a26a0b7d30e32D3f",
    "userId": "311257477"
  }
}