{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "193665",
    "entityType": "User",
    "nonce": "0x1b09f1c479f201dfb8ec9609d419b078ebc9759f15dc7bc305f8f18c25da6f90",
    "signature": "0x1982e32a3641e0aa195b552b43a10a61c5b14eb7799cd988535de3c52ea00dcf4d824fa1187b75b4ad421968f84879b4bf5c3891bf93aa32602ca20be47ec4de1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}