{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "508186998",
    "entityType": "User",
    "nonce": "0x808681c5c74338adcc2638f264501965f4636f520a99932efb89d26372e36cad",
    "signature": "0x6c8e056d88260621d512706b438736b3882e8be32efbd799b55b9272edf4425950e07017bfaf93adbafc88f821de45e2c0c348bbb4ecc78461b80f7419ec25271c",
    "signer": "0x98fC2b30E6e70e62dB2b5fAE7b0292DE3D4323Bf",
    "userId": "480962013"
  }
}