{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1889186",
    "entityType": "User",
    "nonce": "0xc706f2d9297bf589f8cd0eefcf4907cef337f0b4957d55281e9f4a2258a8e8a4",
    "signature": "0x3501e51a86dffd06e8b693d595a3be0531023b0b618975bb7f469b09ae0c52893bc4fa73cebf8a38ad5d74c4cc91e843da0259f807cfa74e75fbf1a618c13b251b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}