{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1477402",
    "entityType": "User",
    "nonce": "0xa3fddd030caf85886758697cdcedf897c103bb9dd2cbeb5f68c82f8ee242ee5d",
    "signature": "0xa76e21c495305e8196e45047c0fb2a0077670b0383a7896292cd8ec88d9a2b2848bbf56e2ba7d6d32560070714ecd4617c5c584558a70d52995fa873679176ef1b",
    "signer": "0x1937D024384aA93c106591013814657C052cF268",
    "userId": "586538062"
  }
}