{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "927553197",
    "entityType": "User",
    "nonce": "0x7b68a1eef172e5d19b4af6e2bae274aeb940782f9594beec63518ce00efd39b9",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}