{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28753",
    "entityType": "User",
    "nonce": "0x9ddb26020bdf12aa35c3b04aef094aaae0097a4f03c35d4f890282fc5b1d08fd",
    "signature": "0xb571c463ab9f21300225f99e7a4cfdb4799dcb8fe69258c98d5b78a982ab473f5381aa5210d48aeae128868c88e15b87b1a181ffd31b09258253e97c1cab85ab1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}