{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144895",
    "entityType": "User",
    "nonce": "0x998dd7a039874844d1d0673ddb271ddee249f06daaa741466ad7bfa307406c3c",
    "signature": "0x7669522495a120567d2d1db3389e280815eb6d68682387e3f41b7698a1fd7539702f78b23cafee0fd5ca92a52a05ec9cf780564463393858758c96b47e67710a1b",
    "signer": "0x07691D0C34E03020A13BE4B5a411B64CcFff5556",
    "userId": "9014"
  }
}