{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "669772",
    "entityType": "User",
    "nonce": "0x92f3ae0a7d28cc86871a3396e53469d26c98f45640640b02ef155b9b093e222d",
    "signature": "0x9c99661ffb2d27e205dc8a12b0b324a0723591faea93028eefde9a96bb76e7930ac4d407f9c3cec49613c8112defdfbe13d47689247bb866a3eb87a1745994471c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}