{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72534",
    "entityType": "User",
    "nonce": "0x45b9dcbf118ae5fa9cbef3e08b1f6475b08400e003a51cb3c20c0b545b86a4c8",
    "signature": "0x012a7ee8f0b9b4521314cfc3010f43ff3a0549a56e3bf3d784577b75c53116bf4fefa47c4269e9a322501d4fafe9eb00bccb7840251de5685cb8b8f6a4a91c9c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}