{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326837",
    "entityType": "User",
    "nonce": "0xac2326df0f6b2b45b5bb49f22a98382f3562412bebfb48889927cb4d6f10851d",
    "signature": "0x4cfc00c8bbb32120a33ab87c1dbb3e2d74a4e65919d67c90e19b560ff0e56f305b7cd62bfc1ca6a8e7a040b0557a8bd6c143d9bacfadc29c6ee74b44ace5bf071b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}