{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "609792603",
    "entityType": "User",
    "nonce": "0xeaa44038364a7f0604dc9df5e11871e6d926e15ce4505c8e3d19085551cf0a9c",
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    "signer": "0xB63c8A7B935b55823f383e8f19B6207FB6b31168",
    "userId": "330374208"
  }
}