{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5014",
    "entityType": "User",
    "nonce": "0xc6d7a735e7a36a61822f4660e5d182885361f5d0c56f73a4e2274040cb18754d",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}