{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "770725415",
    "entityType": "User",
    "nonce": "0x2a8ab1b8d721602e7485224699e8a80dba42fb13a9e8dabe702eacb7594a7824",
    "signature": "0xf1f73bd40c1fe2de0c5b9f84058530c9c2ea27339da1053e74c78e6c3f66462b188400c5b6530c886ca5fb9c6559557dbdc0cff7a559e1d2856e48bd72e37b5c1c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}