{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75818",
    "entityType": "User",
    "nonce": "0x991ca3e16836e3a8a118df6b9cbc0e7d00c3df782e831c1e379afb6aaecda6e0",
    "signature": "0xb18d3519f735eac04be15c05ca849eb10b5aea0af3e8120b9a5f621f4de748825e5b3dad2fa645d10bdd12e15aa9f3faf92d8760f09e28aea2602e1137c9e2501c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}