{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "194331",
    "entityType": "User",
    "nonce": "0xe37419e41751a40de276f7b9d8d29e492980d8075d696d73d82d43fc4a4b141d",
    "signature": "0x20477be29d671907fe514a0687ee9b6b907fd59d8801fef52ea2dbdfd062b49b2c28649e587e0cdf0a79ced3328a3b2a2627533f056ae139b2c5dfafa8f11b7d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}