{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x654bc45981cec468682dfeed5a6f9b8df52659705a5325809ef343e63c082c2b",
    "signature": "0xec73cb067779d87ca94b2ef4c4b9db4ad902a511629d4476b6ba37f56417527c3cdd21cf92430fd48eeb9aba5bee92abd8287d8d516b69b28d4d4837ada725611c",
    "signer": "0x8E45576Ebb27AAa919DA280585dAA25c12cFf9D9",
    "userId": "939414036"
  }
}