{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128809156",
    "entityType": "User",
    "nonce": "0x9c9620bf1c8378d3d56f87d0b82addb292e7cca6336340ddfa29cc1140aac4c5",
    "signature": "0x27cc957a6b6bfd23f63a1fc7532e4c4e4c03d77a673df7ac6309f6739b79aa0967d43cdf360e3b555cb330655b977c3501fa90b64f55bba65957780cbdde0b361b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}