{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "373798",
    "entityType": "User",
    "nonce": "0x47b58a326e1686d1fca5cf520cc0e068a5cae9b76e589a3d2a5499b17a936934",
    "signature": "0x734b2cf5bcb26917a8d11affa33d68e60647c23b416f11daba371bd5b03482ed219c32a29b96d18bcc7bf6573992f7d5b0a81cbc1f4a58330552b5fe7480f6f31c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}