{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "342841",
    "entityType": "User",
    "nonce": "0x00e30109a8e13bce561399b2cef1f492c7b96661a2f1e64342db0ceefc6a6f82",
    "signature": "0xba9a966a8044cd43cb0b6be8f604673aa6f6edfa744e6acd43604dbb4efda8b544a5dd7fc3b893f2fd3fb2593f509ff5406403fca939dfa30e738719f631849d1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}