{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x2cef25f817da3be39643fe5ba5c64302b66163ee8effca83df38e8d107be9cb8",
    "signature": "0xdcb751c401b23eb971c794f17591a17db5ea31e11dd3b92487b73fbe9d59f2dc67a25a41fda8d166769a6ed3cc4aa5c2bcd21eaa2e343c5de79085b032d0893e1b",
    "signer": "0x0b919070bf4822A85C3b514201b2750E94a640a6",
    "userId": "429134824"
  }
}