{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "271",
    "entityType": "User",
    "nonce": "0x0f204d316074e86632ce8fb54989824b41366a7c1d876916c721ee561360bef6",
    "signature": "0xc724390e4ff1efba8c4480259a4835463de3b57d5cb637b773f6556b991270185d3f8e25ae82d2b06e27134b56ff48e3e1a634a73308450a97d625acddce1a321c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}