{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28393",
    "entityType": "User",
    "nonce": "0xd2879bbc498f7b8aa940b9ed31ffde4e6f016812b237997e2cf525606be4363d",
    "signature": "0x889fe4abbbaeaba8f42bf3ae66a9acb22b5409b86a4aa26d36c0e269162ccec934e36373ee95d2fd5a17cee6aff6fcd94a9210a834b33d3f318222937cd5cd051c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}