{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49485",
    "entityType": "User",
    "nonce": "0xd4bb5edc11b7980e64670a05f08fdbe521ad5708db1d3643381fd7db33236c54",
    "signature": "0xda9c2da52838e3f113fb0607969a5d5f076c9606f252fbcfee951fed6751274052b2528d2af45cc49a935d8790c8330f2e7648fe03c6e8a0a8d1c1241974106b1c",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}