{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xc60a6ce5d22decbbf6080b608edb01d97c9d0973fafc0533e555ab3dc930c8f3",
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    "signer": "0xDe6128EEdBB4d15D391871267E286E878C7011B6",
    "userId": "144906061"
  }
}