{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa5a3f4215c0d61dd1faab8bc3da97bf2afa4d89c7bf03982d5b3760be8ed4105",
    "signature": "0x826c73c387d4f49bb0cf03e3bf5a49c05402bc634d29c53f131f71a7f24307ab5ab1d1aad24bd77c018e24f400f999c7ceb2c3606f65051f7288db9541332c1b1b",
    "signer": "0x003324132eBB89A9F4C856A175d40b3E4c4AAB39",
    "userId": "763506390"
  }
}