{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "296553",
    "entityType": "User",
    "nonce": "0x9d5bd38400b56e4617e4e02442ea2a773a9d784323daa1b8c78a583aadd4d14c",
    "signature": "0x0d28dd11fdb7c835e29662b4961c39db075ae3b91cb0c189c59e1df1860d11f30efae729ca7611ea5d8390c7656bbf30ce518e02764651306cf14cd09217e3f51c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}