{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395602",
    "entityType": "User",
    "nonce": "0xe481db714f18314969935dd6f4a3837c46d3bcc6a19cf6909cef359d820aaecf",
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    "signer": "0x8944593b36734894385F617B07cCe122F533Fa26",
    "userId": "866199149"
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}