{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "209641",
    "entityType": "User",
    "nonce": "0x37a2895c54b48506b61448ff9200b0b89710e6a9530346357599d19447b19890",
    "signature": "0x4ea01a7222cb1da6b1f0f2a06e40d4a6625d2a029e59dd095d987d9186b3e93d2afaf71b36bb8d153f7ff3bd301359e5cb3f32fa97973e3e593f6c42aede77131b",
    "signer": "0xca7c61d7Db568b81B8A952B917F45dd863B736F1",
    "userId": "144109"
  }
}