{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "168777",
    "entityType": "User",
    "nonce": "0xe47d2fcdfbae11f440a67cba4ab00c3b13020884da1e7784466bf9bf8576c402",
    "signature": "0xb75f833c16582cc00d869cea860c3d1ec5ea2faa3fba801e1a6c03ca8ad951d847cd7f60fd2a598335ec4f14e2830cb7f05a9dabc4627ac1d5df64a32d4609081b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}