{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53868",
    "entityType": "User",
    "nonce": "0x022f9eb89f9050767c6bfac558e399e09326cff3663d6882208e418205c04e2f",
    "signature": "0xf9b9241e962c10d41fc9b392d328c92b8071762f83e0ab436df459f9bc8b095d586a59ffc7e48638b140de7c7bda007f98e221e79b20547d0471b654557eef3c1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}