{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30717230",
    "entityType": "User",
    "nonce": "0x9ec0352afbd1a0627fecb32695127d151e9e4a4719b76143357ba28b0c98e9a7",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}