{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xdb27d219b198e5e6a99ab68a1e9154ef7ccbca204e5b2e7a592cba6933816e0c",
    "signature": "0x1b32beff8fad40a1e23b6bab90af0b3080913db0520c9dcc40de8d9f26774078728ddda80540d10d9258a5c59f18e8d1e7c9bbd2b0431e0eeac8057c5a8803501b",
    "signer": "0xfa1f98f0530E55C2BEFA45f0F1B3A699b4559136",
    "userId": "149566028"
  }
}