{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151238",
    "entityType": "User",
    "nonce": "0x7e80a625418ab693feab299f9e2beb09a773d3be43bf9c9d45cc20331eb357d2",
    "signature": "0x46153e57cace05f2e9c3b636c1082357e7dffe42f75b623395f4464e82bb041d65582d637054255de62b24b057303272c2a9613ca42468e2b1526f32b7b647151b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}