{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "193889654",
    "entityType": "User",
    "nonce": "0xd91860649c0d3ff22ea570a648302d4a1ec6898dbd610795418d3aa3402f0ce8",
    "signature": "0x0e86886d4b5e3b8c374c2a85376877601596a911c26960526d73c37de54b37bf6dc8bf8df60b3636104e45a32214162c9febb13ebf1218b1d65eaca65ab3cbc51c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}