{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0x587ba466efeaeb31dc5f222ef1dd06243b3e0e6c64e576e2aa576d1c2e91b8a0",
    "signature": "0x80f680eff14e05dd180a3cd0e6f418e90b3ee22e2370e513d49aea4cd260ffdc68963fcf5cfda138f66d772c218bb02b7bf2ca17d1f6e7b197fa6347fd3f66d71c",
    "signer": "0x3553FD970Aa1f7042aA266B76b58401B406F7102",
    "userId": "369215497"
  }
}