{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb98911b9e6e4e10e18c7b8aff7c30f611070f4993574cacdd03d73cb119a5c55",
    "signature": "0xa3d1cc25df2c0247eaa868fec8c3ee059d64ac8cfdf7f935ce0d5bd0a352cce90e28719c8ebfbd2af64fd374d202d2b466f4a1cd36404aad2cf12e71f35a91b21b",
    "signer": "0xBA76F8188C3B73B4282D2eeBC45E9D1090AB8dF5",
    "userId": "92469189"
  }
}