{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137881",
    "entityType": "User",
    "nonce": "0x3dfe635c70110e590836578017ec3f4bafb69785e4ea49db0ed71391b679d0c6",
    "signature": "0xeb4d0e15e4a01fe6eb69916e6dabc74b01545192ff4d382263cdee43e90848cb46913b04849bf16818badae039b1bc36dcfd668123f0d354dccc0cb4d733d3d81c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}