{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "540529323",
    "entityType": "User",
    "nonce": "0x3e1c70dce086c6a1b7d38289d09d2252b9d1c0399cc32fb375976af8aafa9a0f",
    "signature": "0xf02b8f67a0258bb68673d15a1023c1a886c600ed3762107b92e7daa7499c709b0f63cc9fac3b66a7953d26ab8785891f23cc64abd296cdb54130aa83e5a553441b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}