{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17689",
    "entityType": "User",
    "nonce": "0x8e18e77468ba97bdfa7132beac2d4726e10706320420c4c6aebd40e54db7b56d",
    "signature": "0x3dc84237ac0dc82225fe556c1c1756e55792b0c5c4c5f26fa037ddfb864ba5a370bcddc5f83a40a0d09ea1a677b39e25d6702003e8f4c7fd037b2de451c51dea1b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}