{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "235478",
    "entityType": "User",
    "nonce": "0xaadc2eb8d2b08e0c5573abc95e40cfb4d311066803a29f72e6dd93a430bcac86",
    "signature": "0x30a6fdb7530a585862219631c48642d69854b597a04908d3bf8fa30b161663d20acefdbe37925e28a82350d0593f5af14c4e8256f8f14156c70d18d5438d9fba1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}