{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "304646",
    "entityType": "User",
    "nonce": "0xe611c6725aad2b0e189504bce311f68bdec2d101a6c9e92eb157b196beea6e74",
    "signature": "0x5c66736e32d1b433546dcb816f1d82bd51502eabdd4a8e76ecf9691cfad3c0711cb92b1905cc714ff4995d595d8473925cd37e1763eded73302105210e905b151b",
    "signer": "0x5272751b6e0Bc11e8f740E8dfcAD17b585F4Ed42",
    "userId": "198767"
  }
}