{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8694669",
    "entityType": "User",
    "nonce": "0x977521df405f06266aa484572a4c578935559c14361869d6be9c45e2d13a66e0",
    "signature": "0x1ac285aaf66b2b23e37b319df65fb85cbce4ff46c4e0f108a5c8d3dd5940ca036aa01c14693464a3aa39d678ee4ae6bf04387a86ff9d849b94319727d60fdbee1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}