{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105548",
    "entityType": "User",
    "nonce": "0x9f3eb51efd0da56bcbc514dcdb38410bac0abf23990bb17817aa55b8a2bee13a",
    "signature": "0xe62e2475f7b2b8565b9ce72c58eb39dd0d434d16d014e77f1d6df841b91ad0e931072ef0c5d5ed281bf3d3f0f4c58ebf7b0514c6d6407f53e452be54a40418301c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}