{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x3fbeb6c265e21427eb196bfdb6c455425db03e492a19639fb21ee636cb59d3ba",
    "signature": "0x1478cdce06fbac29aaa7f1d5f2df3b9d7bf7cb131cdd7a62d0d40b872616421056baf089a9ed909547445e04454f28317a744e243b11f881835cd1033c44bc761c",
    "signer": "0xEFAB3332CD5EA33e9817aa57B32CaCb8Acf973A4",
    "userId": "407216161"
  }
}