{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5e1fb1bc3e70074ea9f6ed1a290f4f26633052730d51abc0a1213ae58127c103",
    "signature": "0xefeecf1d09aaee5eb236394c6252eb193faa56ba5afd322544718895bf23f37273c9fe8403fe88571b50b05e284f451822672ddbe0b3cb123f97ac2a40d9121d1c",
    "signer": "0x66fad3C0b056706C0989Ad1bfb50790337D476c2",
    "userId": "82747908"
  }
}