{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd28e29ae28431bf334309db81d5900aa9016969754d42851f9482afb6f6c3e32",
    "signature": "0xebfee7e6c0e3bd565b5648213eee7b8ae611a0addb8bdbf40365fa9f21fa42e9136df585bcca0b6a700b4b812fb3cf385047c529f3fde25b368c2973bcef483c1b",
    "signer": "0x16eC1CF4f324EACfAa9D3F0D2add22A0e775fb3f",
    "userId": "392894187"
  }
}