{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "142436",
    "entityType": "User",
    "nonce": "0xd0337701bba6706e9bd70ab490fa1e29ff5a8e9afcfbd3c8900eb5941011d025",
    "signature": "0x7222a54c9ce5ec945d3cfd0672a9738fdf21884e607e40a44196eaaba09c8f450f136fff40e215c6771894839779c350bbdc2a77730080e9be371f65ec9a7a1c1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}