{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134623867",
    "entityType": "User",
    "nonce": "0x34031275f418721f1ee5049855404a83d7f3b4cd0252d029aced97eee8920a55",
    "signature": "0xb5355e087b7057d38c9cec47f839075209b99743fc74ceb7e373fa76dec9208606e79b244fd090689eb8d45919ad440f66e8859115a78aec510ea9fca5739e1d1b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}