{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "103726",
    "entityType": "User",
    "nonce": "0x502cd8ca85cabd45a344bafe237c50aeaec13b68edf6c38e4f16c8f381f0e818",
    "signature": "0xaa6144ba1b5dfc4f1569be6f0c8f644547d1685fd62089dd1dcc0e8f382015ef2cf48b79edd6f58046d8eb7a9036db20617daa64fe817ca7dedd3b58b3d098341b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}