{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x28488b2239c0d651cec8c1576529ad273ccda26ccfff339a36644515a62746d0",
    "signature": "0x9266b3f71bae3812aa8150bf0da8201da616126faa2301691df63d59a60a3fed6d8935d3e5cb28dadb2c55f30610cf2e3df0528a3307b04b54f4fe0891b4cb451b",
    "signer": "0x7C5d61D14c1653440D33A4BDC81c9B2CD9C4e64D",
    "userId": "570474497"
  }
}