{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc1a4c0c1e1b6c983723ed2ef169bacf0894d4bc1adf1e243009fd2b3a4b8cf0e",
    "signature": "0x4edf7d512f29b3d18d115b3a85fceccaddad6935867bdfb2cbf402de7d2dfeed57878eb17293e04c7245dd56912fe4094279c5e01bfcefc7843e97677b0f06751c",
    "signer": "0x227cfc4c0d079aa632b32bB85efa344eb9D15ce2",
    "userId": "497088785"
  }
}