{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1882559",
    "entityType": "User",
    "nonce": "0xce647b2d514ae7c6548d519775f1c73f66aa01d2baf523f3ced341f717bec697",
    "signature": "0x0b88bf0663324cb798ac44c4f3002fc10d3ee606ff4ff16e2054e53a061baa194b51353bd3a7810b1e19b90001193331b42687bfe40b1a55c019dbfb2aa790311b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}