{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "222",
    "entityType": "User",
    "nonce": "0x8c4f2445fa8785f5952135e20849d83fc313eaabe39bb88e0c9ba7a77da02c4f",
    "signature": "0x13e2e1986bcb2e896abe2d7c7717f4d6588865c066c6863c590b8637c413c73171caec838cd652c1eeceb7b94492691f47f38017d3b1853935d99a52330318a81c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}