{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57069570",
    "entityType": "User",
    "nonce": "0xa3db501f74b1e8b936c8c73cc4af936821c876f85f9599fb66515199fcbbe004",
    "signature": "0xb7e643c1ddf5a42e52bda237f3175fa98293c8b1419a661ee399511419e3e1ef654c6a2a7f5373dc6452694d3d2becf9ea43d03500626cfef2aac878b13e1a4f1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}