{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "723085841",
    "entityType": "User",
    "nonce": "0x1280429173de87348bb933847f6abf1905319a5d51d24a3f320ec997069ec70f",
    "signature": "0x3bac9731066f5bb85d9acbeeec9d3d2d28141322e942b1ddf6650f7b6b7499c36ff68d6b46369788575bc1c8e82be32176827bdacd8c776037f7133a0b2ddecf1b",
    "signer": "0x97Ce19D122F5b51231cF4DBbd25Ac36CBDd6CACa",
    "userId": "426864186"
  }
}