{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "390966",
    "entityType": "User",
    "nonce": "0xe7745755253c6912c78a2d701cce76837bfb9e21ffe17ce7f9f03ac5c0bcc97c",
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    "signer": "0xc876F505cb8a680D38792C141903C53780bc3901",
    "userId": "384345140"
  }
}