{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "352174",
    "entityType": "User",
    "nonce": "0xf3ced5f88e64cd4b2d403b850893b8276e2f80403dee0b4bfeb3bd10bfe9fd45",
    "signature": "0x9a96904477f5dba48622595e04ad5ed6e3b0e476d98edd07e2c1c46bf85721d870501b8c9404ba7bdf12d12450ed946b5db7961a29f0d1646b0358d84b04eb3f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}