{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "948329777",
    "entityType": "User",
    "nonce": "0xf338f7b0fdef8130fcba79f953bd3d44311897e3f1164a9db12554305b1b8e29",
    "signature": "0x38e86e8f98f74558783750d207765897d099abda2feca7d8b8eef33ce75bfd16444efccf9e1b3c4b2f89160343b3d6e502b2346be0115ff899fce273c4b3f17f1c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}