{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "494113495",
    "entityType": "User",
    "nonce": "0x8133d17f1306bbf9377c2843096387f3038b442e1607b3521713b1f3577248ea",
    "signature": "0x70d5ef2e070d2af07c824d57503fd9de142e46a899500d77462f7dadd791a3b00b168a5b97000d2d8d6afaa261586b32f15d2a403036da49356c62abe1b674151b",
    "signer": "0x6F41AA445440dEABD6B921ffaF3e9F76138B658e",
    "userId": "155117491"
  }
}