{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf02f1021903ab97fc6cf7a3cf2eed26531a3ae19b9377a6df1f749c9cdd77036",
    "signature": "0x96229f79c92ed02899c916940fa6887d2c5fcd1de28d8ad66161d301dc3603b87c67d2f84bfed5a615e8d8275c85a7dd63ece8abfcfe4fffa849fd16100e754b1c",
    "signer": "0xC316FCfb333BFe861A645a3B79c6816b0F2f3bCA",
    "userId": "994976921"
  }
}