{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "445042807",
    "entityType": "User",
    "nonce": "0x18f7db82be35d635e1b2591e4f1fa1c193440bf8eb85d178f0c6c3a480cc6837",
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    "signer": "0xe270C91f9476B885124d6c0208211213dC10036a",
    "userId": "94825285"
  }
}