{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55290787",
    "entityType": "User",
    "nonce": "0xe03d5fb62408c20077074b1fe6e8a530dcab3d27e65f02d03a53ae469b25c5b2",
    "signature": "0xfe962d651141c32dc6f95911af4c0078cc87f92b1a92937be7419cbe2783288d61edf885b4ab55333433f13872ac1a3a7bb2a37ca779b9c537e2500e86106b721c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}