{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "187259",
    "entityType": "User",
    "nonce": "0xf838ff3acfa2fca39ef6610577d69d8cd5e15002e893eb74e7a92cb1ab7298f3",
    "signature": "0xa90492d84a65a2e583b9e6d686ffb859e2c707b53a472bba23c9561ece9d2c1264472bdb760d11d9fe284c30812914386e4f519b77898cc7199fc451753156801b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}