{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "759473",
    "entityType": "User",
    "nonce": "0xa0dc883e77bc465f3418f59c3784bdd74b47cd7c3eb093ed58e4489f5622a822",
    "signature": "0x66cf1a050e8713284dc7d31bc26815a0724ac1414ab1dd96913b2a9d6135fc792cc22ac81c596d08ac1435abce8c141e82d64e7f573f823e357da0351c216f0c1c",
    "signer": "0xad1E2A70fa1227797344FD6df31327a26552461a",
    "userId": "153162"
  }
}