{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134328",
    "entityType": "User",
    "nonce": "0xde1f0f7791f4519d635b4b57144666b560282663f42bb7417f8252cd9b0f3e1c",
    "signature": "0x7e3f9a5adc9c9027c955f07362ad638619b0c3e3cea9809a800bcbb2d1b07480749bbf77f33e243e243c4f95bd289413a739a55e20505cc372d7a1821f6529b21c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}