{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0127e446573b9ab8fce14f12103b2993ce7a7528038082f07c4399eeaa1e9459",
    "signature": "0x6ba707a56f1cf898dba38630ceb00adf1fbecd2e57aad4d375b61b760163e11b32b67b48db9a51ea727e5b7b027374dfa39c1e1db756d30581f4ae17b7fb47331b",
    "signer": "0xaa9c57886E50E1C31c9e252d3e949e455fB6a653",
    "userId": "132888617"
  }
}