{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "347439",
    "entityType": "User",
    "nonce": "0x7567a6c6bdfe6ca0ea0cde2e942d697374248d056480bee8921e7c3cb4d9076e",
    "signature": "0x4aac416be41c2de5fe3db8193a8078807c04fccfe12de0dd9e8f0d85a32610f34119366cc4b7edb4854766d87953d4c7944cee5a30a79ab0310bc9312f5420471c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}