{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbd84620932c03a9e4f4e95e20fe4c075f187835eaedd8999c227b461258abeba",
    "signature": "0xfa87e6017caf776d7f29b59605f0534e900d98777121e482a0c18fc4abc6403e42d96dd0cc5181849efc3696a2e963f4da4c6b9e9a8f9621cffa7a00fca7c1681c",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}