{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcf6e4f453ea938b01d6e6b8e74a52bcdd00154a8527212cc9bc9eed88cc99b6b",
    "signature": "0x04976f019e96e336927587a0ed51f3ad9b7d6b0cfa58b1c3db3dd04eaa94fc5c316f353e82fd900a1069126042a3b85f7dbebfd5f4352b565ec5ed0e9aea628e1b",
    "signer": "0x083626C5983025BFec0Ca7BC8FC5B244f8e29b75",
    "userId": "482858095"
  }
}