{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "728570067",
    "entityType": "User",
    "nonce": "0xe094ada0b056f15905533f792965db1c2381a92d5208d189e0a5c5cb8c4d6662",
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    "signer": "0x27eB4b469aE053b72c26B3e9c68a655390Fe24fB",
    "userId": "42216"
  }
}