{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "689259710",
    "entityType": "User",
    "nonce": "0x892130ea5a33b1fade949e68318847e2df659b62ec805625e89560dc84ca3c3d",
    "signature": "0x2117ca9a6660cb6766b319afe42a20c2d31fcddc9d128f3266afeef51c513ee925e4b56b56e25071facc9c5842344b66883fe93b05f7e5d5dff3a0ecbec86c771c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}