{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb32d1a5abdc495602c14d8e928524ea403f41b8dfef1c2afb574a3558a7f6636",
    "signature": "0xb7022e8c4add4d216b2f49cbe5e351b55545554346284e192d3722515e6c5c2c197f32ebd5e7afdfb13d75c7d881b9fbe808c6b165934d0f4ba3456e7b7662891c",
    "signer": "0x7A1f214312F4D997f528a3d3C675C11eAbbCB0BE",
    "userId": "960377729"
  }
}