{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9c1746249bf3c4c41ebb85a472f56f3a50de992602caffe3c661d2f133aeddfb",
    "signature": "0xcbff71783fd3c5f5fd63cfc4466e10edd2195ba3cdbb90c491929a3ed088979a31de2903730d08bc5ab930036928869767ab614e3b0afae02ff324187495f0111c",
    "signer": "0x0701aF0aE30A2e3D732EfDa9075813B8FEc9D18e",
    "userId": "511663598"
  }
}