{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa133f33bbbff4ac4cf526ef42fa07f1af6576c086bad422e0d7a206a1152f8d2",
    "signature": "0xf30103b376fd987cf146b55de86c3c92ebc927e5adeb61039c43987976195c4269808d4eda625be5fe414fd4853be67f916d79b0ad16340420afea3a98b205151b",
    "signer": "0xdbA357EFDfe46052De520AB4d7273f64e33BEAb1",
    "userId": "609391289"
  }
}