{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "397196",
    "entityType": "User",
    "nonce": "0xc10bb84b5fe63280b2407a85183478306f4ee5379ac7b37cfe253461ec8f27bc",
    "signature": "0x0198858a2d0b7eac5c5d0c35633b41c3092849d81edcba46a965c461aa1007aa13ac3cbc9af46f940a366ff16be27001d324f27a707bf39fe5039cab490851ea1b",
    "signer": "0xc28F39d473d5C4cacc612630A8798a119D1Bb506",
    "userId": "901788935"
  }
}