{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x8154770ece9fa740bdfde2ecf34e39cd712b39b4e7d214f25c35155db26c5b4a",
    "signature": "0x38018abfdbe48fe652e64b7bd1b79216d3154f482909d0019ac26a10f28e900c393f92228cc63a163b368df28d9545dcbef8d992607f86b1052f7e4be20047981c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}