{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "389177",
    "entityType": "User",
    "nonce": "0x93e592e49d276f2f27d2fbb7beeed8de20008a0a0ef14d638e8c1bb3548e5a0e",
    "signature": "0x8d9d5b57fdddfc9537198c1ea781075962a2e03f8b7336a8092e0f96b6fc510005834ac51ca37004e46b5a4fea06c2bc14d580bff25e0952ff8936a03e7a0adc1c",
    "signer": "0x297B472Ffc8Cc4eB6B874Cc0839bdeF088C018c2",
    "userId": "897537535"
  }
}