{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x71d5f2054253e7e2c937bc559a5659b5025995dbd408b22221d87d7781861139",
    "signature": "0x39b626ad5dc1f6d69611b2df22aa05bbf37d3de1894e6ed1c95900215e625523568463752d6fe6a4940c278b1cfa91e96eef01bdeef8dfb30de142a1e079ffba1c",
    "signer": "0x3e16afFf69eC32202c1B755Ad919C7aA325B7aBE",
    "userId": "902811065"
  }
}