{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "310550764",
    "entityType": "User",
    "nonce": "0xce25a14b509dff75dc4428cbc14d13f734dd363ef238991e252c434970fc6009",
    "signature": "0x7db3d5d7877756347b276a28a4a0c7bde27995c51b6f8d5272298d4538a886697e789a71a0fbbf1e04fdc2a0e52ec31c12a68cd5c94019755da3979d347fec961b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}