{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4624",
    "entityType": "User",
    "nonce": "0xd0b6f227777a8f4f69fa0a2946a52b9f1da35cf70e7b7d688467bd30776ccc3b",
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    "signer": "0xD1542f219572e15b06d039dfa696911d75fAD04B",
    "userId": "120088582"
  }
}