{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1867438",
    "entityType": "User",
    "nonce": "0x53f408ddc512100ca17d2bc9e25a8d5e4abdb681f6ed321615a24cb83cdf9ae2",
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    "signer": "0xB5f484B2572C82B0a09b05912803Fd6151d3B78c",
    "userId": "205408122"
  }
}