{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0xbd65fd38ecb5fa9a80a6798c91b13a48e50038935ac04f430a80a6bd5864aea5",
    "signature": "0xa3ebafde53bc79943f39f81876ca54484e22954ec40d8836002e4749c178289271ee0241f53e40fa12cd763432254ad540f5abc05ca7300cc5e45efef8da46ee1c",
    "signer": "0x866CB73184a8420C302e3850B610761F882C4DDE",
    "userId": "166428182"
  }
}