{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "209407",
    "entityType": "User",
    "nonce": "0xfe3263664d6bc6178ce4e3581b4a193b0bebe416a619a82758b9d4debdd14d3b",
    "signature": "0x7248508db6f47b3cdc15aedc5278b7750dea0693372d5f731ea2f8d24f7a37727d5f276b789f50226b8e83c2d68ec170e2cdc54ba0c3611124c972bc2f27d4881b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}