{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "393688",
    "entityType": "User",
    "nonce": "0xccd643a4b03419650547e58c500fc01d615217f4e1de34f2eb7b25a79493ef20",
    "signature": "0xc4fd5838fa427598daf57348f023544f0af928b61e9d3c73c8876322fb178b9b09f74df83b6bbbb61055629ebcefa17e20bf472bb7a9323577f066e0fdb58dc11c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}