{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x460290cb23f3abcdb4000c2f366ad14f694b25f22696c9cc05ceab7c0fb0e1fd",
    "signature": "0x56446bc862fb8142c8d6d40b0589cb2339652319c41b1fa0d417c1d1842235eb4644f222cdfa14d909db858820e9ef443060f42946da4085b4494bcc594bc3541c",
    "signer": "0xFf72bd5bFc445d05eBCca0E92057f747b2059878",
    "userId": "83657080"
  }
}