{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0xb0190f20e277bea03a5bf3e89c20fd0e8eebfeca13bb70d1b0254f7503312365",
    "signature": "0x851cea0ee61584e51a818a8ea9e702e528e2600bf7ed63b87fddd0bc3c75bf3c4934823068d62f4cfe1fb6d95c5748b1f9c5910d3efe627ea7aa9ee9e497e3df1c",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}