{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0xa9c437fe08dab3492b5266c5d58337820d99c949f2d231e3fb1dc89884b94b80",
    "signature": "0xc6e5dd068473ec933d9b2d4e34ae4b22b6eded7184577bf5c8c1900d585b27416d371b05a7e3d3d88916be708e9d537d57ea5ba8420339a4b2f82ceccc7dfb981c",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}