{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0xae609c0951d02c35cfd745bd850627188bb9147757084879ac8ba993ed19f6d9",
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    "signer": "0xB78112c8f9509b795e2a9eb412066545A61f51f2",
    "userId": "633421399"
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}