{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x7e31c3201d0c68654af2a9bbe9ddf578ee1adcb5d335dff0e964789183a78112",
    "signature": "0x3fe84886a5d210c9b5be2cbd64ef62ce3a7668440acaf96f37fa582b87b10def33b43b472101903f767066464c735e1145be46403cc3a399a289a5026a8f6e9a1c",
    "signer": "0x334c1E156039f843FC1FC4B64FBc58136cE8414a",
    "userId": "973129552"
  }
}