{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49613",
    "entityType": "User",
    "nonce": "0xf81ca4bcacc27e77a22d49e9280b63cc2e3da77a7bb9b18424ac32ee2fea0457",
    "signature": "0x167aeb0d21e1c013a09c54ef0a7e17ec9f991d0250ffa39f075cb0c48c6852554f14aa6b7919c24cfec45b651e7abe23fc43fa19e68bf0bf554c550b532adbca1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}