{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1422147",
    "entityType": "User",
    "nonce": "0x471c465afee5af320d5c22c8e9ea1a41e81b7f1d02333f976575fe53a9566411",
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    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
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}