{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "696738",
    "entityType": "User",
    "nonce": "0xcd47d953df08dd45ab945dba4d63967a3689113684731c778f75a984b7b345ad",
    "signature": "0xff69f36bcd5ada87b28c61635eb72b54daeb20d2bd26d3d2d91f27272dd1f1f153672f679c9e5cd7e55b9661d0a43914b4698ea7c4ec8c6f2b3237f5814110f01c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}