{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "484365174",
    "entityType": "User",
    "nonce": "0xb3424ab5c3d636e94b06bc0da0ff65c06a53c2c6c5dcc4cc20f97d97fb79786c",
    "signature": "0xf666a4de0c009a0ecac15a3e656c4ed19cd6f3503f71463f34ee0411f1cdceef2f6bf3f379cf0a2c49697176bf31cca07987c5a69c387fe672879f4dfe8ca1d61c",
    "signer": "0x0E6Ef8dF2F401D8918d603B82ef321D94A721556",
    "userId": "648802251"
  }
}