{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd5dfe0527ccf37afefe1d0cbdd1ad2c97a372280ee471e2aec205b7157eb6baa",
    "signature": "0x8766f31c5816c624184134221ba82d9ce1561eafc57840f8dcf2107cc390ac3f780f24784b1b2737369e9899ea2c8b7416f40f4cb7fb5f55b1794251af5eade21b",
    "signer": "0x1A4cD71Cb8c06459856FACa017c307D754382b62",
    "userId": "837019248"
  }
}