{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923480019",
    "entityType": "User",
    "nonce": "0x07009ba82baa305bac7ed4aa925a6ce8b3eb9301dd007f384fcd201f913c2f99",
    "signature": "0x0e0ab0f3b793734fd66d191f5ea18b468dfce9ac4da0c81fc68a25c5446153264de960abec8dc25b8c016fab13d8ea0f7b1d9b60f81300b0bd4d80576c5299171c",
    "signer": "0x79375D6d575fE2a038916001077f90CbAE12d4A9",
    "userId": "973873678"
  }
}