{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "390804",
    "entityType": "User",
    "nonce": "0x6b80602bf13e2463c14fefa7b10df089ec43bfc892737d058c506b386156961b",
    "signature": "0xdf92833e2601c7ddd8569242ddb37e2e96ccc8c0cca078bfde04efe795c74a401f491c0367df051a38563188706ac0c42934918ffacd51e0edfae584dbf784b61c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}