{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x0c174735dded475655fb6d45a0b6c831c772fb315e904243066e1b907bc0468b",
    "signature": "0x21279132678360315f00541adb1214849d7a357c5aa05e5c2c189fb4e136fe2b6bf425ba5daa345bab1964058e2cc6235cf6e515cf91f598b40caba9b527006b1b",
    "signer": "0x136A4e19270387bc21d7e58a9592D46864B0Ad57",
    "userId": "956002390"
  }
}