{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "303195",
    "entityType": "User",
    "nonce": "0x9f6e970e3365afc0fef7c2d275582a64b1e04b094354b731f1aea0dfbc515fdd",
    "signature": "0x83315e379d9fbe775a12957d29c5211bbb984a475b56bc2a46f74d85c10440c0450dbeaff289e3304072331cd880160c4629e4c24d3af043cee92d96a7c937061c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}