{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77155",
    "entityType": "User",
    "nonce": "0x19bd3654b6fdd6c325d0d8ce73fa3144fec16fa88b0648f79ed5704bb7f38c5e",
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    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
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}