{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57188",
    "entityType": "User",
    "nonce": "0x5f9808b9fb2444a4de2d75a4f1978f1537243894d38861c354ef3932fc85d5cf",
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    "signer": "0xB874f4621c8c59121feacEaD49e379Baa95ebC5b",
    "userId": "480497000"
  }
}