{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8bf09c04601d95c87c333274202ea92386f27fc9bc3aca7d366ab967830076e4",
    "signature": "0xd1f6e3f8bf4a1c2b8bbff851e671843d423f22f683f8e9b4b2fd73dc04115eed264c58af6f2c1e4e09af07b659d8b8d6b173830ac8e9016a98d3427871fbe8291c",
    "signer": "0x5797b066E3818C2d16862430ec442E3CFf120bBf",
    "userId": "428405094"
  }
}