{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7d0208c1c483e8d7861d78b73b7e1cd8e9c728133abd70a5819131c25dfbd963",
    "signature": "0x6c31db2afc53f10db3c11592dea161f4c878d91a112c1462ca4f599650a6e4b925599fd278692fd09bd070dd1c8a83743b3066857891f98d276487452708a8d71c",
    "signer": "0x8FD6b4a8e927FD20f850aE4319D3b4005B1D9eA9",
    "userId": "636763468"
  }
}