{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "875378857",
    "entityType": "User",
    "nonce": "0x40dfc68a138e25c82c957f4ccb4399eadb0c81c4512e910507ad2f973049977f",
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    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}