{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf19c67cf61d5794f349a4f96c349851de1d5f03bb59c047ada43d585dde900a1",
    "signature": "0x9f5631d21fb9da7975291b7f76de83d261d5ae8d2cdea200e3b94e2d94cc1c512157d0500de7efed7414e30bc160efd2f6f2046f218da276ad0c2acd2d28f3e61b",
    "signer": "0x30654Dc61B0C086EDA66789591a606222f4fe531",
    "userId": "481317253"
  }
}