{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51978829",
    "entityType": "User",
    "nonce": "0x5346e42aee7b45c0f35e8baa1ff02e0c0538338e7694cd469be5f128741ad651",
    "signature": "0x21d4ba5b6c7ce062201133c8ec5477ed59d8b01568e81c13ee898ec2b2935b2400fa332728b9c9513467d14858df70c9538ffc1cb6abff8f394ac4cf1478c5391b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}