{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "126",
    "entityType": "User",
    "nonce": "0xe94fc5d30f75639299b4ce3f7729896dfbebcb0ae1c538e5b739853161d677b9",
    "signature": "0xbf4642b824ea1a233f74897655c0b132806b67d72589378044a97135639abfa34f942c55bf76444497354786d5837a9e8266c8bae5043eaadb0de4b597cc08a21b",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}