{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "479136",
    "entityType": "User",
    "nonce": "0xef93e205c95dfee4a5182a94209f33a00408cbca70508100729195b843a69db5",
    "signature": "0x8e13cd1b20f8076c74afb115ecbfc126ed50bedb772ce8d34a4648a71e1a79c11ed3bc03fc037850385d0db8a81149cec3837cc308ede5be72b529f93c3081f61b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}