{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53375",
    "entityType": "User",
    "nonce": "0x27d95550e53e90b075361b07875a8cd93c230a4c2f08c883a2c483bafdb3b9bf",
    "signature": "0xf52f95b05abd1e3ecea5843534abf8582374049cd2bcdbfaa9f46d5b00ccf6506628b4fecba67494d1dfeea70cdaf2a349bb709089a3e69584a564492f4634751b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}