{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe4d8701751f18b34082b8df4ef66d911a502fe98adbfe62e824503dabcf9493c",
    "signature": "0xdcc9a64c78c2826a4c13be6efb9294918dfc7aec3e097be232af743398d5c76a520dc03a29b39efa37efc89ab38646f507faf84a6bea03967a729d0714555f461c",
    "signer": "0x0a85a456198b34736212EaE9e80dB1f2AD877Ebe",
    "userId": "574523826"
  }
}