{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16920",
    "entityType": "User",
    "nonce": "0x6ede926ff8be31e2afb254154b5d57d87f78eb30d182f6be15be0349e66e344b",
    "signature": "0x1025cfeab42c5756cc281f18b97b66d7cb390b08bcdf8be5e879bef084c4ea761513fb39530542e06c653115d7db9e14e95562208b144977bdf6cd563e2c454f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}