{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "784638380",
    "entityType": "User",
    "nonce": "0x53dae7d95542a6845e43201e086f2fcccee0360d2ecc37b35f612b3a41214e95",
    "signature": "0xd7fdafefd557725a3976fe2bc752cee032e08d752527db8a0a23d7eb4f24c98c698240fc0e31923841a7d408372aa5aec637293656e33a4fe98d05f69ace1fe91b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}