{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6af1e7d82815ff1b886504ddbaa9b68ed26381549872b2434bc7052510e62ce3",
    "signature": "0xc473e48c86d91e884a648cb2ea029223f2ddb038a5a01cb9d236936738c1b8670d1fc2ba95ffddd84142de3c83c672036d2f56c95d839bba737302486a0624811b",
    "signer": "0x64c01f9742C57EB71252757E8fB3fCC8a5A2E0b1",
    "userId": "795880586"
  }
}