{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "339785",
    "entityType": "User",
    "nonce": "0xbd79bf7ae3a2b010a1fd18cecb0615aa08cddc2aa8c8ec2ae26fbe27e672bf27",
    "signature": "0x395404a1ea4ffd59ca7931adefdefd963101a838c2f1b1df0938ff0b175a0abd1c751f2fb3a6299af5d71d5e85b2f0c13269412f6379d46a5ec31b0f7744d37c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}