{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2029574",
    "entityType": "User",
    "nonce": "0xf2d28afbac7367fb7d473cb9c211d4bbbe5c0d9fdef3ffeae96299168450b1d3",
    "signature": "0x23756f2c1a8e964b8554aaa8076c373c60724e5022c75122227a8ffeeca342881c6a16e9de7c85ad7a2d13f48a461e0b2173f04b790ea31abf9209e20e7db4901c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}