{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "666103786",
    "entityType": "User",
    "nonce": "0xf286dcc0f34a8fdab9cd995046c1cdab348637ee5001f4794e8af443b1530917",
    "signature": "0xe163d3662d26648a177954dd480555efbe7eb2061da14e4190a8c5e5a32ea80d2963e2ca08a076fa7b4c168fd8b93c611098285ea9834eb4d1dd8808c75739fb1b",
    "signer": "0x65dB542f2aa3d2f8e17Be4066a7D406F7A5b26a1",
    "userId": "851742313"
  }
}