{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5260",
    "entityType": "User",
    "nonce": "0xf51152930bec60918455a72b6fdbbd21e6f1a3db70dd226fe739fbda3552c37a",
    "signature": "0xe65652ab3dc2752cd1c585babda58b92e70fc9081df822651d013bebebbda76d7e0f061f34b0cd835556cb8cb3214f187673c96a22d261f2b39523aedb910b001b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}