{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "759966935",
    "entityType": "User",
    "nonce": "0x225d74626e116c5f4f15100a7bcd96a564f9bf8b16cec90371eb7ac9996fe569",
    "signature": "0x315e3734e720e061d7d111655d6c03fe81845821f0fc10e2780a6b1a08de045f12335028dfce4970cd51777a22ab641d0bd0816a9de1fc88c167640c7a3d848b1b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}