{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346596",
    "entityType": "User",
    "nonce": "0x6292cafffdaecbd3a6ef6e23ed7c07709fca95cfaa99e13b31e6071870932728",
    "signature": "0x7bbdbe2dd15ab46c5132e14d187e6bc1bf56277c71d58ec4d2e8e079ed348fe9354134d6508a16b1f48b0fc47b9f1b0aaa74b6ea46f47b0e22574848ae6dfd901b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}