{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "977626924",
    "entityType": "User",
    "nonce": "0x79040602f86fe5d0fcba69e40da5c121f7dc540a16e3716665f560e20affa955",
    "signature": "0x60fdfaafd88ffdf2fb17521338250865b905968a8a26fb97b2554f3315a92a6243779645ed8a4fad69de669e38213713544f81bceacd4cff7c4a7f83bc1e0d271c",
    "signer": "0x4ad870a0C318214b4796d1464BC8Dc57C6b84C12",
    "userId": "408505072"
  }
}