{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "279392",
    "entityType": "User",
    "nonce": "0xf89bb73b0f9db5f9921ea02913979c7814a1abbe0001b8052a5ae9251b07f98f",
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    "signer": "0xC90e14007305577f04e5F4f5542B2191bB2c7394",
    "userId": "1856608"
  }
}