{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "259",
    "entityType": "User",
    "nonce": "0x3185181c0d10ae3508f41c7744c58ec02065cf254ea13311e8bed7e410335e3d",
    "signature": "0x11d0dfaa04e91ee1a3f11703b43b912af5a7d296865811c2d317c042bdc2348a769da4faf41af6ad37bd351cb30ef94cd71c09549b49d04bbc2508b7bbf040c01b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}