{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "728570067",
    "entityType": "User",
    "nonce": "0xa6a3f29f8c4f03035607f7ae4476267ecfc6c6158191810a7efac4b5e3bf1776",
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    "signer": "0x12693459919573CFE36C620C041b1541740f8F47",
    "userId": "296379"
  }
}