{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xad02eca155158efe4008e2b564e827afb2fe19a87bd299d3c639ff9754f1483b",
    "signature": "0xd32afc111a23c14f125402d077f21f509a0bf53d5ebbed4cd3cd5fe6980eed163dbb1a85acf2b123471f7326cd1c8164106ca70f81be87a5f9b3bf26055775481c",
    "signer": "0xdB859da145eAc5f173b5a68ee5F22434899fe416",
    "userId": "881880880"
  }
}