{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x1c203e9a2a2397ee1f5c63d341bfcc03baa869e6845a599287f463efddb49453",
    "signature": "0xd4200dce97ea17dec7712e7832170e01eb9e2ae35258c968c7bf60b4e07bcdea1491a2127b5fa5faf117149214042140a8529f2117956737525aa000a59d74bf1c",
    "signer": "0x0E1419Aff1544Dde5c4eebbCfA208Df83ACdE40A",
    "userId": "564626302"
  }
}