{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329513359",
    "entityType": "User",
    "nonce": "0x6294b8e8ec5dd3cf55da97f609fcab525a0cb6f9602fe9b11876357368eab1db",
    "signature": "0xe3b88534392815b9cd18b0477cf3562e2ff04089ccab39788fc285f5c2cae37445250f86265bcc973b7c63ab9bcf93a857dc61d1a078b07192d45bfcb3e18d981b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}