{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbc0d756863441a50060832472309ae6f51ac0d2d03c31fa1a6df2479ad04ffb2",
    "signature": "0xa60e8732dc56122aa6bbfff2af550aa9e11675c165af87067513a5da0a3fa359447d11b34cae14f8dc6e31c1de3cd6caee57c83d7d51184a60d7852e2ab469e11c",
    "signer": "0x82e8776f188519d108F3891288F3dCfbEB489b4E",
    "userId": "691489217"
  }
}