{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf6d617ad60ad0cd0600b6f4de712189ea2e59c21f2a73e2503e9002598e28fc1",
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    "signer": "0xC17740061c7Ebc3162F2e168463E2787Fa792618",
    "userId": "448893310"
  }
}