{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "145934209",
    "entityType": "User",
    "nonce": "0xd22b6be6c69db74fcbd3f4fc51eeb4629cbde37c762da58d8987089ea70c892c",
    "signature": "0xad2a647296bf4a4b4be329a6547369ebae6ac88141ed291d3918cc7c6bcb3f5630f9c6a2255e0541fa2d1bef355b6544954de5481be4db4e57d19d81b41819081c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}