{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "682621",
    "entityType": "User",
    "nonce": "0x9182449395c8f06bed4aaebeb04324fce601b381451dbf31e26956a52b22aef6",
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    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}