{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x0c5ffdf255e803b2b09bc0414d3df87db5045e0c5ff92d80327591407876798f",
    "signature": "0xba7e79375ff12603e44114d43e875abaaf01364f4c5d29ad587ba723de235af0463e0a3d26ac1c306e6632b9d2a393da50d6cb25356bb33123bef5bf678ed50e1b",
    "signer": "0x661463553B156580E748121e1aCAE86219E6E996",
    "userId": "247699513"
  }
}