{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "102128",
    "entityType": "User",
    "nonce": "0x740cb469274211e315775fa42dc4f4f62327b1ee37da4356daaa8f204d278f8d",
    "signature": "0xd80487afa1c488619444a342b72816280cddd31ef84451d27693d617931a8a153830fccc71845625de65767cc954ae1adc8541b91b5edda41c6848ac6a87937d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}