{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1707",
    "entityType": "User",
    "nonce": "0x45297426833dbac83021dc6c69caec30a89d12abb63a0fdc01b6812a6e3139a5",
    "signature": "0x2303af21810dba3fd21cf31172d08e25316cafb1d02a756be1b46686200e61f65104c416ac38f6699f010acdf7c8bae04d50e21f8d11f1fe90772dc6d147c6c51b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}