{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3277",
    "entityType": "User",
    "nonce": "0x7b8446973468a4c9d2adfb7a66d8a0805b342b730688636c128cb57c4819eb30",
    "signature": "0x674d8d2adbc01cf83ffebec8a027c6ea761ecc89e4d92df8b0db53c1e988c2d4579613e268a47a73ff38464796c15d561ea8fd2e8400022276ba519f007f93c01b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}