{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x59a0b20c817945635dd94e33e7aff113321e4a7b484d5ed1c8ab7b43f3b681c1",
    "signature": "0x5af22efcdae5d03fadf5e4cac6b1c7a6bfab829af9abbe505dfd1bb223d7bb9e2f66a4c1cfc5c689f0f2adfe39fef65667763bcf7d6b9ed6c8d12dfb89f7eeba1c",
    "signer": "0xbfAE206f70d778Ab443F3942EA87145142a20a48",
    "userId": "254836537"
  }
}