{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0x500de285a23878f56f1660f0ff7eb263f1616abc914980dda2e96531fed59d6c",
    "signature": "0x3cf49afced5b9ff647037e90831dcf33bf65e46388aafe62266a45b1cf1c93ac4c8bc1ca4a17a9e38ae729a8236e371acbe623616c4250a53b9d15e0274356561b",
    "signer": "0xf4e39f23021D832A7D8e37A3e280Bb0E5bC75bFC",
    "userId": "406892069"
  }
}