{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe1208a801975218119abf7187e84aacede8b9b07c255343638b0a5ed615512fe",
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    "signer": "0xE2fbfC9188B264Dd76322A8903cE15a1E3bc5a05",
    "userId": "380811054"
  }
}