{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "780600",
    "entityType": "User",
    "nonce": "0xe1fc7dfe8c34d9869a50dbac2cb23d5f8a604daccdcf4100227471e44d3e46b6",
    "signature": "0xd83b4d5ae0f19393ca2b736bbce2e65fd47bf5561272376c1aa295e3c124d7c36fc25ca77057e4cf737e4473f3fc109b074a97ca53aaf6bc2af1c548a2bf8b831b",
    "signer": "0x5896365f90324C2769b28123bd6F4f97594A75A1",
    "userId": "936150431"
  }
}