{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89919",
    "entityType": "User",
    "nonce": "0xfe78c60dde8dfae810fb6002ad6adfa89824fa6fe6fe98307fe91b64a9fd2d61",
    "signature": "0x94894d6c7df173c14cab06eb55724480c028dfac9f722885bb6a1667d23564f03cb915f54f86540c2a0eb3710211397d12d811221c5a2631c855784be8a5a3ec1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}