{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294973155",
    "entityType": "User",
    "nonce": "0x673a218962f87c2069f3a9edbbb28d9388591cee784b734dc36b804d3139b251",
    "signature": "0xa6bc109fdabf81572be8b21a5b2afc36e98dba7f5ed5d74c426eb6b00c66a6480079ec91da502dac9ea540e18f8dede4a0a58d5466ff763a7971761582e4d3711c",
    "signer": "0xcFe1eF2d8538759fbF5161710b35d043b5f0c077",
    "userId": "712556959"
  }
}