{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x2ab77688338295c5f5fa08dae7931663daceb48fd8afb26816c8b8bdd6a7e46b",
    "signature": "0x6301fe1594105b57172bd1cc64ae10771269a74f7dc968d81068c3ba971e52820cb5ca040f9a007153e3adcccc87b8432a48825852f095f50355bae15de3054e1b",
    "signer": "0xD03e6976eD4d0102D82a2D2c5D87c67F53CF84BB",
    "userId": "74307388"
  }
}