{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbc6f8b83d4639c820290d19b60e452527fb0faa94af9ca9061417d2a074c44ce",
    "signature": "0xede973c4dcf5efd8ff374cb754220b86a1dfde1f54b2c925d513297826ead2e61aca0224796c3c6c9a53b73038ab7160e70adf9c72d29cd73f32c831d98540a61c",
    "signer": "0xB5ed7eB45433A055c21a704bB68F53726Ef5d568",
    "userId": "413483366"
  }
}