{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43309",
    "entityType": "User",
    "nonce": "0xd262f32ebe6a2390e7b320c8f10c26efefe8555994d18899d3cde3f382c06453",
    "signature": "0x3c8bcf055cb4c37345b64c38795725b61d51316c9320621ac0ac67c8d423f9db061d73266bce04280081bf76a17b63ca117f0b4fe16332b07f8acf9099b492aa1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}