{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297464",
    "entityType": "User",
    "nonce": "0xa5051457c8f688196fd5ba4beb74b515dee806453d4b46e762faf09f9d92aa5e",
    "signature": "0xbc8f4bc1a27c60c2188f1dcdba07f284c53429c67fcae89a65cf6e3b036ebd2f07a7f546d798dd54e4171549366e52e08e36644b1a2b7932944ecbae2ec9e2c31c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}