{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xedbccc30ad2ec217b135b422329f33b2fb4ec1598cc31cf3164022bc811c8537",
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    "signer": "0xBc8c206ae949Aed29358c2cc40A6317A9Dd0cd3d",
    "userId": "321112504"
  }
}