{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138775",
    "entityType": "User",
    "nonce": "0xebc84ea4e5f6174e6d5f7b468ae98babda0994ac1e4a7cc4b15de55fde57b830",
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    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}