{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "508186998",
    "entityType": "User",
    "nonce": "0xf1874d957c0ed61aa2af5af8dbcef81604e6bcf54ddc8b2b765249316356815a",
    "signature": "0x2456ca5fb569ac874d2fc561eebbec8f8d4190dc812bd25da4d7c68ce7e569a2001c24b9cfba732602762aaa9fe38bd002770d229307170e251a0174ead256fa1b",
    "signer": "0x2c93018Ec80482402e0270De617331aAD32E694c",
    "userId": "131458840"
  }
}