{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "893287807",
    "entityType": "User",
    "nonce": "0x3e9c199145347ac91e185a5f5033f1ba445678bc111d0c368c8322f3a1b3cd31",
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    "signer": "0xB6977e46032867474008Cd2f452F2c7a140Ab305",
    "userId": "106614376"
  }
}