{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "910778788",
    "entityType": "User",
    "nonce": "0xabf20a2f1461edf7f91c65bd13bd77cac404972417a0b47fd2af15358923646a",
    "signature": "0xa3d832c9d34a4341338867346a9071568210c8846c6a640dbac3a28556871cf8080b91c43d0e4978ed09730541d2149f1c85ee4c79c58433c199bf9154a17e201b",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}