{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "508186998",
    "entityType": "User",
    "nonce": "0x023cf45b2d530af1283a2832280296676194769fde0647d8f96e72c1eba087fd",
    "signature": "0xeb2f8f5271ccf2edacca72b2997b57beca706d0b5eab917657052525580b4d3d2fd339a612ed365c9b10b933ce8c1392a4d765c2732b21dbc7c1ab2f4532c6b31c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}