{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x342723d3ed1ec8ca84d87d6fa18cc5b0c077b709b32e0c2c47e844b7df4647a5",
    "signature": "0x4dc92cfb62530ce03b0792d01138df30d988eb07622c769fda7466d3fae909cf2d75adddeca3bd2e87580bb23fb9c9cbeaea59eb127108d9850ca01b3931a7541b",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}