{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943606732",
    "entityType": "User",
    "nonce": "0x90e0909d1df8d08d6bb08bbc05a4ac007d60133f7046466b4cf4cd88c789e750",
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    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}