{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x69496c1639494e0cb96867cf0c5083a07ee2284921fbcb8150f9ca87d550a7e2",
    "signature": "0xdb9a84238e5656cd3e4b94d9894f18e2bdfcc46231fe6de876865247c06914bb0d12a404053c960639ffc5674ba9227ce47eefc3b9cc71da240cccae3e9cb3441c",
    "signer": "0xF1FA1D22B85b200516Fcc7f4b56d14d9F7112dae",
    "userId": "100549961"
  }
}