{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0xbc5ad6d4f7a19c98c505278c19db41aff5ed293f09446281bef0a022927a7a47",
    "signature": "0x433464daa4a62bf5e0d47fe9e165db60a5698ff50fefafc9ada9ef06f9d6e2e51cfe0606357d3e229cd51478a1e9dd6d91163aafea053589c6fdcf0b045d30801b",
    "signer": "0xE0927890059f95C33419724ba02C6F327B7e4e45",
    "userId": "769410778"
  }
}