{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0x64fea82a3116b53b9e8fe3aa6cd4be060010588560424e0b8c86935610c22ed7",
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    "signer": "0xC59f7055B078B1Ee57c271E19BE5Dd7033FD64f5",
    "userId": "950751701"
  }
}