{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "337364291",
    "entityType": "User",
    "nonce": "0xd8038622038ce31a61b15631bf24a1a2fdcfd5f4d9b6eafcde7d4462221288c1",
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    "signer": "0xB2A34b43465721B690e6CbCfB42C0cdC30050183",
    "userId": "103086"
  }
}