{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcb8e99604e1a70d066969b577d632bd4d95e89200e1ad5fb56baca4e529612bc",
    "signature": "0x4e5c3cea5c752cfb0c30751ed5c81c5264f8d375de17d53828fe0b7b05ea68fe3b040ae1d5689dbb7a4b08c00039830c9ab48b62e8500b158fe54a263a1682251b",
    "signer": "0xEDBF649a5756FE92F81819c7772ea73e51dDF25F",
    "userId": "83588504"
  }
}