{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1429398",
    "entityType": "User",
    "nonce": "0xfcf24c303ec5c81059c72704ce309d27412cad8cb610481d7a410f7dfd767e24",
    "signature": "0xd42e664ab89c22cc64446e96f55727a699ebc5867e314befd22e72e57ce741613dd4b7d2ab5b7f4b080dd273666df77e710378a006049dcf60c9ed19f00d40231b",
    "signer": "0x850aA0456b0ef795D5D345834cb661E8c083574F",
    "userId": "733747072"
  }
}