{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17091",
    "entityType": "User",
    "nonce": "0x99616c7eee1ba363aed87a52b57657bdfacbc7bf273b142cef1862725c0089d1",
    "signature": "0x4a41ea0fd3e3cd0b7b2c0b405eeafb632324674fea99949af4a30f7dd04e95d477d163f691d69116cad754a9242376803c38669572cb3ccc4fd4701aa02531071c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}