{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916107216",
    "entityType": "User",
    "nonce": "0x6ee9cbebf444740503398ea9dd4e773e462025a0ca6c448539c2b16a46ff5241",
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    "signer": "0xb175867C02AeCd449963dcdf49E8710D84e56b11",
    "userId": "181053434"
  }
}