{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x4618313250f8d8e0406fb2648231bd7c698fef948b2fa4c1728db2ad14f3f9a4",
    "signature": "0x32dc07b7d66ef9a625145ab67c0fb1a97f612249896fce79011c1f032f3d51f131b04529e0b1d01e3f5277958c81515c772c7f78b3dc18be2aec2abc3f5f0fba1c",
    "signer": "0xfcc1ebd834F0a4e20443BB7a77c345084d78bd3A",
    "userId": "465161300"
  }
}