{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "828772640",
    "entityType": "User",
    "nonce": "0x725630cb5ae52b956711ac5f82808d459935d867b0d129826ad6f171de5071bc",
    "signature": "0x9ea63b751c9221a8a81f544915a5010e876f7b1c84a387b9dcad824fb42b11823e4fd6007bd6739f5c1cfdff4247f5868c68b67fedfd3146e65215ebd3b221c01b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}