{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xca2cddf31e5c8b5595dee3f6964e8957a82fb9d50706ec4dece59bf9cda2cb51",
    "signature": "0x7810a2a73ae9eb056fc474f0f0ebd9e35f9b7aed51aecb65b9c98133f2b5ab7c075905d34e445e4d0087f5057915c371f384e8663c4c436ed1384852770217431b",
    "signer": "0x8694122f58BA1d252b52c638aE86aBE1a55F5763",
    "userId": "491602969"
  }
}