{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x23a4ab20942f9f22c0997420abad14fc492488b4d5f527c3fede947c69e1ef1e",
    "signature": "0x7b266354a5c1e389228603ef035239aa82bed6c6fa962215c6a7b23a436e71f24a76e82b351f9a8e6d14a8d0ff3f042c7aa49f8fa56836393e7af7770cbb38581b",
    "signer": "0xc786627661302FDd2cFe2e72dBc92f07EB40a1Ad",
    "userId": "746647846"
  }
}