{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x945de63b5f5896da724a3e688d634c92465cb021f9619556e85b89021f8fc2ce",
    "signature": "0x8dc10b7788bc62a2d566be28511ddb4ab86614f115df43270ed21d0608dd4b0050d0115f2f94a2116a1d475612bb262a81e588f3585ae2cc6effc6a3169df2fc1b",
    "signer": "0xfc7b754CBb5e42d94a7064c0FD31cF7c5c99afE5",
    "userId": "992932046"
  }
}