{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446567301",
    "entityType": "User",
    "nonce": "0x59fb9f9de008cb42936a522cd6831a406254a25e60a7ac9f5ec4944565c09e91",
    "signature": "0x564d738b032bab17a75cd003f801b65fe81e257786a724c4e6d5e284f93ffcd04df760f2b9cf22e9bec1bc2c21fc00ac30a4d5854e8ad0d8832ab3bc949e2b9b1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}