{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53957",
    "entityType": "User",
    "nonce": "0xd8bb609c324fb4f2ab77d1c0e328b688817b8610da3268bf603233a537fed45e",
    "signature": "0x55140960e52333c024f0cb482567c18d0d032ed15532d881ec587b802fc0dea30ca054c1fea70fad5ead6d073645864ef9860ceda6d98bbe475eb32320ac07421c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}