{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8804db847603c04acd01228abf833c28dc3fe89d5efe265aa5c39940c9b4d9e7",
    "signature": "0x7d0e1e4e52def1ae3dcdecf29de6c1aed6c9fd395051c2c70df2707ff905865005ef00c26565af0bc6afa6497af4f0c89e2474d8e3b5aab238cb3b111e8bdcf81b",
    "signer": "0xC2c9a07201A949519f1594B77177a1C52Ec5F277",
    "userId": "608583029"
  }
}