{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1433309",
    "entityType": "User",
    "nonce": "0xce51bf03f5395edc90070e9170b8c251eed3270d0ed966a31877fdfee650809a",
    "signature": "0x47a506449c655500609e5790d33e47a91a8264ef0aff4870357bf3d74f7e8b8031f986b294a9d1e3c928b618088ee99cfb9e9f44470a436073a037d92e4b2c891c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}