{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x179f6eaafab2d3f6a53c521be84afc24073aac136ee42e1d4059f28f78954c4b",
    "signature": "0x9fb2c582c267009def2ace009f784202cf167a7a69b953a0417d518914a986d35f8e1f38e171fcd2f6f91e0d7bbf8f9b9ff96bddc317fe0ef3eb52fe8fae6ef01b",
    "signer": "0xa8e964fBF3855cE16F33d89DE1064EAB16eaB87D",
    "userId": "175460947"
  }
}