{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8cc6dd3fdff4bb446c366bd4f36ee8185a896af4db36af20cf39cd45503c36c9",
    "signature": "0x7f651fedc2ce67f2efa142ce139b55d71b3eef77db431bab0413b61da1d372d7212ece44fe0304dd4e1f32a3f4f7c914d930adba1efce02af0050b040165444b1b",
    "signer": "0xaa78c4733Bfa8f8db084FE55a9Ac81276d73670E",
    "userId": "776888307"
  }
}