{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "165951",
    "entityType": "User",
    "nonce": "0xb9a328e4da935661a2fee94c251e76fbd7178b1553f1272db1e5cd22731376e4",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
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}