{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "582464754",
    "entityType": "User",
    "nonce": "0xcc2cbeb06a3e528f25286f8c989bdcccf072e435c73cba9f6551e49168ccb63f",
    "signature": "0xd2551280e10dd47c6134cd09d8ec08e680af6e14aa4c0e0fd8008a6b58788a55196ead79c2fb2a24a0b23c2b48db546d2a22ee5eb4d589002c5ee67fe3e597131b",
    "signer": "0x0E6Ef8dF2F401D8918d603B82ef321D94A721556",
    "userId": "648802251"
  }
}