{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "475900419",
    "entityType": "User",
    "nonce": "0xba4fb6285b2710aacae332299811c89c3531e2872e5def4a0567613ea89f1b0e",
    "signature": "0x49291fcce89fb33ba4d292e0fb04628e630f59eaa967216fe15f101fdd86b87600806353ea676d6dc8cdbf13352a1e211cd67e65c817b8ba3650bd98d22935cb1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}