{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x93015ec63892db26ff555318ab66af91329a40eb09de73974406f8467996908e",
    "signature": "0x8409b3d8fcefb0b266833bbf92e4a4bf87866527178d70904c3e0535727b3ea650d34a74c7070f7265e5f1cf871eea5488c4fb9035430ddee320a47a12ae8a871b",
    "signer": "0xD5e21774eBFbb75367Fae64727C9FC7EB7C6820a",
    "userId": "58273052"
  }
}