{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "712688986",
    "entityType": "User",
    "nonce": "0xee43823a9021de03664e576738cd7f9e53c712e7e9bd8b4ef62a71ba3d4d44d6",
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    "signer": "0x21598D137E78d9Ef3073bfE80E71B8d5DD794B3D",
    "userId": "954784626"
  }
}