{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5be8387bca4fa609667aad97def2a3d4126c2b0e214aa13903c28272df8b0c0d",
    "signature": "0xcea7cdad9b5cedad344229eef163c34aca03293b79cc506b2c45a81d9f4cbff542db751316e76a0925ea8a83e080373ac8dc5e783d35c010a096de12a28f7f8d1c",
    "signer": "0x1ECD9688c615106d522cB00eA1d6974159dCEbD5",
    "userId": "205489491"
  }
}