{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "858479840",
    "entityType": "User",
    "nonce": "0xa2659bd77b489e7a2cc34d476504d4e2621cbdc5b8087dada8eb33d5bf403bdb",
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    "signer": "0x1c4e2947b5F9FA4A927a23897193150631C1DA35",
    "userId": "933435942"
  }
}