{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "418596051",
    "entityType": "User",
    "nonce": "0xab3dd4b360b859913c8fe0c3f70a6073cb196dd2e492c265660688f782119aac",
    "signature": "0xf1422effa7567760b4b8efbe1113fb47315bbf99c6802fbca6b5c4c5975514cc752d7cb99d95b4d33340a51a49436eed2aed544125f155e2f3c45cab9301196a1b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}