{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190351",
    "entityType": "User",
    "nonce": "0x7d7959b291699c05e3ba91b1a36dfd4bc1d63da87b5e954d4dee544009f13103",
    "signature": "0x4d85d620564476491bb07474e2190f6d95f7b39c484a45681077d5c0e10d385f32fa72938de447b1fb34e3c34fcf75442c84a38c283cebabaaf1509160ad9ce91b",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}