{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8940",
    "entityType": "User",
    "nonce": "0xd9de532c03db0252cb216c299cc6af6fae0376dc19ccf569dc1596f47bc017e8",
    "signature": "0x6ac0d19ce6eec58750f4b305e31363d64d330d3fd7d981e912884e2073b527553389d244e500b2c6eeade550397cf016196961532fc859acf878b217bf8312f41c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}