{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "422787902",
    "entityType": "User",
    "nonce": "0xa4d3d2552d2dbcae703c4c2a0a6cc861272e17b147585b3c9fbdc20130cfefbc",
    "signature": "0x081ebf165fa4f872ed357aa61fc7f1e1a504b8995fd443ab75417505b456ca0a6114fe446fb7892e85aa88746e937a3bf9c14bef61f879c545a702ae6cee693b1c",
    "signer": "0x8d7F9eE7E3bd8360d66fD0618fBb8D73ef454e0E",
    "userId": "328915105"
  }
}