{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xa47f26ad10b190c3134503bc9fe0419e114d64aaaf3fd7d0bbc87b647640d894",
    "signature": "0xcb684577db5ba788dd9cf4b5984ccd9e34b6684756da8e8a5c943c16ce9d4c2b4d1e907de4f0c6ac5ee4c8081ceb10c11cd68ff5d4ae15930510fa750c00af331c",
    "signer": "0x8cAb834F826D5A147bF5434142f6D07Bc0f4978F",
    "userId": "827837269"
  }
}