{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x01488a2549f01d378a70c1b455903c8926c940a37db3a4f622a136cf99b44f80",
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    "signer": "0xDd650ad29b8c77eC14a1D110731773571713459A",
    "userId": "179478096"
  }
}