{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383103",
    "entityType": "User",
    "nonce": "0x2c666de76652a38f532e85740eb9bca3509c9a7f44be8c51025ac871cb9ce9f2",
    "signature": "0xff51e2681dd7f7ff6ffa88cc6f66a2a84cedca83de917e7218b8bf688484842460f6a0ec014a7208dc5662d9b1694200dc2075d2865b3a102b0292343d14c2e91c",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}