{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395602",
    "entityType": "User",
    "nonce": "0x429249fe70c06fa11ad6c3abe444b0d2dc38acb13887372fc79e0fb1b86bab92",
    "signature": "0xf57f203ce9ad4f59307a2b34db7926b1be30a2df42f4d8a863028f8e1569ffcb5ee756fd834b0dc195ce5c889774c3a4a54b13935241d2b390b346054225dafe1c",
    "signer": "0x81Bf0645011274410d5E45790ff7D2d89f3e2254",
    "userId": "880775312"
  }
}