{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x839ea566345eebf8481565d6768a872e5e985c5b1dda3bafb4537d4e701cbab8",
    "signature": "0xd9b7512d153b86ed8487d96d4093e568420e9200135d96668fd2d86b022e50a30822750f09361d21bf02da3a685ee3049d48122d63d879efefd0808b1656fe771c",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}