{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "258655155",
    "entityType": "User",
    "nonce": "0xd89d0bdd403bf6559e70b9a1efdb7745f4b1df288b4b09bf4a93e8523540d213",
    "signature": "0x559e1024f3c1a4bc0268f505a5f47457e38446d889f627a96a19e1bad8bd9c035d700c62237ca62bbca9891135d6a0d1132703613ab679ef303f2071fba6df6c1c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}