{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3799",
    "entityType": "User",
    "nonce": "0x109b142407d1bf2351a3a6bbb0c2fa1dbdca1ebe10b524bc262271ea28b68bba",
    "signature": "0xdaf6dec87266ec24815d600e301ab2112c21a8ac32e41348adbc1f02de6da2104f057df9817e70bafb5f66fa39106861742d80646fa27dff9aadb7b3755210151c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}