{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "208569",
    "entityType": "User",
    "nonce": "0x3fe233d34030b5c73c7329c6eccc8d47442850957a32212f96a0940204b1e0cf",
    "signature": "0x86919fc8bce22b9e2e32c03de21bb86a6756337262d9647e6358024075934d14439e6bb250f48777c8503a133368f9f27d588ce8edd175bbd47f720623d86a911b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}