{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "386745392",
    "entityType": "User",
    "nonce": "0xb205a520a611c17b3028cd0386143874da050d30596a61826352e5a8bcadc1ee",
    "signature": "0x603ab4f464decaf94b61e13a9758b2245b5a0166c99ddd50dace45084392c2e56022a9e91d93124524af038cbd975b6d77a93b5fb8944afa12def9c50e1305b61b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}