{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488468",
    "entityType": "User",
    "nonce": "0x2c3dffcc0db587151a89d9bb85b04e286d45226d91550cc167af7f05a503e01e",
    "signature": "0xc6db13c2c784deae89fed7825987413c5c26d1187e09061321d262da9e57c14b33cf9978cf0027f4ed2a5db47b800becdd5a54646ee08d0039a66a689e6c17d11b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}