{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72350",
    "entityType": "User",
    "nonce": "0x5df9281110cdb5e3dbcf40351a5055be88b832642b3e61c86e9532d1c41d2f8b",
    "signature": "0xb92f6cdf5403b052c8f47d0e5beb9bc92778afbf023ddc6a60bfcb854c391a571a56f653070abdcf24ee5a7a9ee07424d226711e083b8f557119b903bfd0cd531b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}