{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "589472286",
    "entityType": "User",
    "nonce": "0xeb36761c0a61b9c978f0a304039fc25cc235acc7b7e643a72ee45c67919c201c",
    "signature": "0x053578f597ca38cb0b2a4bf12a5a6cdc35fdb0078a0a64929ac71daf19c880d376329c2e5b9cae7dd42c55e709653e4c6550be83a4f27e5d5985a5af2afc669b1c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}