{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0cfd7ffac5247567f007c89a8138fb76f431cdc0458c814c751bd6c27e25dd51",
    "signature": "0x0226442887a1dbed7f49daebacc6abb3e260cc805201092f8143dec10b978a503f57232833fc90e38e19084d4343605614ab70fd917167d70aa910309660c4961c",
    "signer": "0x89a03cd491462b601e07a98E74AC4807594021a2",
    "userId": "706342009"
  }
}