{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "124312",
    "entityType": "User",
    "nonce": "0x782fdd94435b4500c81b0bdc31ae4c2fd6de9d12fb44ea66f35094f55f993938",
    "signature": "0x74f072db98c814dce8cba413b51da8bd06a0ba03b19eb3894dbab3c90993d5be60b32fddf8d0553d5d6ff88e794981409c78dd2d83894d76ca05458fc33246bd1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}