{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "163447",
    "entityType": "User",
    "nonce": "0x3777aba6b1dd10a3a4ec371b758c5509b8f64e44bc0029bc7da8d816fe263c19",
    "signature": "0xa3a7115eb0488257a5711ed748efab7971380f241b117aec307ae78e7a2cd52569933c699f731729122f812c53da259d6ff9e120c37395185d6a3ad09f69588e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}