{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xbe9c888dbc94636c5672bf975f30f9fd8a9af3248312f82db5c68872b1d4f72a",
    "signature": "0x5e1e28c8026c48e42ac3e52aef52791c08091239c913487eef805a8be528e61f486186e5937d075245f453007044132c8966dbfe6e2e0b6e9afbec0ddc5ebe6c1c",
    "signer": "0xf4e39f23021D832A7D8e37A3e280Bb0E5bC75bFC",
    "userId": "406892069"
  }
}