{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0xc59bf4f26bca9c4ab2a75851189e4c476a41714599739a0938a5a4b2d68cb097",
    "signature": "0x461c132e9fa14d2455821413c9439122fc3cc95ecfa1dedd2240b0562adc9c2b54610b03a30ffc52443f8280653a83c47dfedd947b1d679e04fa0f865acb5f1f1c",
    "signer": "0xCf3E6F9F4BF41C4e355E01484A92aaf61B6dd8a3",
    "userId": "149919577"
  }
}