{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x25dc371d8edf7e423f3d7c09687fce9d5b870895f06f37369d879578930a45d6",
    "signature": "0xf50836881abd1badd27d77b459d13a3ef4349efbdbe7d62576eb61a6a4bded92596a5aa4e4bbaef50489804a5403b5cda48098451f3788ab08f2c94de37b01fb1c",
    "signer": "0x54bC87876799beaFF396Caf61aE3186E8235343D",
    "userId": "832575185"
  }
}