{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x94a357e91eaffc6fb4309bcf3bf844ffedc1ac008043c972cc76a2fc5f9c12e8",
    "signature": "0x2ac9491c20632125fa250402c5161a0bf7b72d539e4cf1c90c6f7c229bf69aaa78101d94cda329e8c1d5a896a0ca5afb9c985e0740935b851dda896df0082e0a1c",
    "signer": "0x0e2Cb4578608C6839e885c2bf380a1e05205E959",
    "userId": "569574910"
  }
}