{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0fc7a1ece97f91283f5d8cefd1fc9af3405e729a09656065bcbbf059393510df",
    "signature": "0x19f5ee0ee9c3496b52aeccbcd5bde180f498a7ce35d74843fffbb1717b343c5d38fec443e76974e5796aefdbb9c9e51858c1fe8c3f5adcfd4ac969a91f25f9371b",
    "signer": "0x61e6A1F6D330893BaeF12f4A5520567D90456B41",
    "userId": "766461388"
  }
}